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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.2 by jsr166, Wed Feb 6 20:29:55 2013 UTC vs.
Revision 1.41 by jsr166, Mon Jun 2 01:46:11 2014 UTC

# Line 1 | Line 1
1   /*
2 < * Written by Doug Lea with assistance from members of JCP JSR-166
3 < * Expert Group and released to the public domain, as explained at
2 > * Written by Doug Lea and Martin Buchholz with assistance from
3 > * members of JCP JSR-166 Expert Group and released to the public
4 > * domain, as explained at
5   * http://creativecommons.org/publicdomain/zero/1.0/
5 * Other contributors include Andrew Wright, Jeffrey Hayes,
6 * Pat Fisher, Mike Judd.
6   */
7  
8   import junit.framework.*;
9   import java.util.concurrent.Callable;
10 + import java.util.concurrent.Executor;
11 + import java.util.concurrent.ExecutorService;
12 + import java.util.concurrent.Executors;
13   import java.util.concurrent.CancellationException;
14   import java.util.concurrent.CountDownLatch;
15   import java.util.concurrent.ExecutionException;
16   import java.util.concurrent.Future;
17   import java.util.concurrent.CompletableFuture;
18 + import java.util.concurrent.CompletionException;
19 + import java.util.concurrent.CompletionStage;
20   import java.util.concurrent.TimeoutException;
21   import java.util.concurrent.atomic.AtomicInteger;
22   import static java.util.concurrent.TimeUnit.MILLISECONDS;
23   import static java.util.concurrent.TimeUnit.SECONDS;
24   import java.util.*;
25 + import java.util.function.Supplier;
26 + import java.util.function.Consumer;
27 + import java.util.function.BiConsumer;
28 + import java.util.function.Function;
29 + import java.util.function.BiFunction;
30  
31   public class CompletableFutureTest extends JSR166TestCase {
32  
# Line 28 | Line 37 | public class CompletableFutureTest exten
37          return new TestSuite(CompletableFutureTest.class);
38      }
39  
40 +    static class CFException extends RuntimeException {}
41 +
42 +    void checkIncomplete(CompletableFuture<?> f) {
43 +        assertFalse(f.isDone());
44 +        assertFalse(f.isCancelled());
45 +        assertTrue(f.toString().contains("[Not completed]"));
46 +        try {
47 +            assertNull(f.getNow(null));
48 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
49 +        try {
50 +            f.get(0L, SECONDS);
51 +            shouldThrow();
52 +        }
53 +        catch (TimeoutException success) {}
54 +        catch (Throwable fail) { threadUnexpectedException(fail); }
55 +    }
56 +
57 +    <T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
58 +        try {
59 +            assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
60 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
61 +        try {
62 +            assertEquals(value, f.join());
63 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
64 +        try {
65 +            assertEquals(value, f.getNow(null));
66 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
67 +        try {
68 +            assertEquals(value, f.get());
69 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
70 +        assertTrue(f.isDone());
71 +        assertFalse(f.isCancelled());
72 +        assertFalse(f.isCompletedExceptionally());
73 +        assertTrue(f.toString().contains("[Completed normally]"));
74 +    }
75 +
76 +    void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
77 +        try {
78 +            f.get(LONG_DELAY_MS, MILLISECONDS);
79 +            shouldThrow();
80 +        } catch (ExecutionException success) {
81 +            assertTrue(success.getCause() instanceof CFException);
82 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
83 +        try {
84 +            f.join();
85 +            shouldThrow();
86 +        } catch (CompletionException success) {
87 +            assertTrue(success.getCause() instanceof CFException);
88 +        }
89 +        try {
90 +            f.getNow(null);
91 +            shouldThrow();
92 +        } catch (CompletionException success) {
93 +            assertTrue(success.getCause() instanceof CFException);
94 +        }
95 +        try {
96 +            f.get();
97 +            shouldThrow();
98 +        } catch (ExecutionException success) {
99 +            assertTrue(success.getCause() instanceof CFException);
100 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
101 +        assertTrue(f.isDone());
102 +        assertFalse(f.isCancelled());
103 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
104 +    }
105 +
106 +    void checkCompletedWithWrappedCFException(CompletableFuture<?> f,
107 +                                              CFException ex) {
108 +        try {
109 +            f.get(LONG_DELAY_MS, MILLISECONDS);
110 +            shouldThrow();
111 +        } catch (ExecutionException success) {
112 +            assertSame(ex, success.getCause());
113 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
114 +        try {
115 +            f.join();
116 +            shouldThrow();
117 +        } catch (CompletionException success) {
118 +            assertSame(ex, success.getCause());
119 +        }
120 +        try {
121 +            f.getNow(null);
122 +            shouldThrow();
123 +        } catch (CompletionException success) {
124 +            assertSame(ex, success.getCause());
125 +        }
126 +        try {
127 +            f.get();
128 +            shouldThrow();
129 +        } catch (ExecutionException success) {
130 +            assertSame(ex, success.getCause());
131 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
132 +        assertTrue(f.isDone());
133 +        assertFalse(f.isCancelled());
134 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
135 +    }
136 +
137 +    void checkCancelled(CompletableFuture<?> f) {
138 +        try {
139 +            f.get(LONG_DELAY_MS, MILLISECONDS);
140 +            shouldThrow();
141 +        } catch (CancellationException success) {
142 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
143 +        try {
144 +            f.join();
145 +            shouldThrow();
146 +        } catch (CancellationException success) {}
147 +        try {
148 +            f.getNow(null);
149 +            shouldThrow();
150 +        } catch (CancellationException success) {}
151 +        try {
152 +            f.get();
153 +            shouldThrow();
154 +        } catch (CancellationException success) {
155 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
156 +        assertTrue(f.isDone());
157 +        assertTrue(f.isCompletedExceptionally());
158 +        assertTrue(f.isCancelled());
159 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
160 +    }
161 +
162 +    void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
163 +        try {
164 +            f.get(LONG_DELAY_MS, MILLISECONDS);
165 +            shouldThrow();
166 +        } catch (ExecutionException success) {
167 +            assertTrue(success.getCause() instanceof CancellationException);
168 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
169 +        try {
170 +            f.join();
171 +            shouldThrow();
172 +        } catch (CompletionException success) {
173 +            assertTrue(success.getCause() instanceof CancellationException);
174 +        }
175 +        try {
176 +            f.getNow(null);
177 +            shouldThrow();
178 +        } catch (CompletionException success) {
179 +            assertTrue(success.getCause() instanceof CancellationException);
180 +        }
181 +        try {
182 +            f.get();
183 +            shouldThrow();
184 +        } catch (ExecutionException success) {
185 +            assertTrue(success.getCause() instanceof CancellationException);
186 +        } catch (Throwable fail) { threadUnexpectedException(fail); }
187 +        assertTrue(f.isDone());
188 +        assertFalse(f.isCancelled());
189 +        assertTrue(f.isCompletedExceptionally());
190 +        assertTrue(f.toString().contains("[Completed exceptionally]"));
191 +    }
192 +
193 +    /**
194 +     * A newly constructed CompletableFuture is incomplete, as indicated
195 +     * by methods isDone, isCancelled, and getNow
196 +     */
197 +    public void testConstructor() {
198 +        CompletableFuture<Integer> f = new CompletableFuture<>();
199 +        checkIncomplete(f);
200 +    }
201 +
202 +    /**
203 +     * complete completes normally, as indicated by methods isDone,
204 +     * isCancelled, join, get, and getNow
205 +     */
206 +    public void testComplete() {
207 +        CompletableFuture<Integer> f = new CompletableFuture<>();
208 +        checkIncomplete(f);
209 +        f.complete(one);
210 +        checkCompletedNormally(f, one);
211 +    }
212 +
213 +    /**
214 +     * completeExceptionally completes exceptionally, as indicated by
215 +     * methods isDone, isCancelled, join, get, and getNow
216 +     */
217 +    public void testCompleteExceptionally() {
218 +        CompletableFuture<Integer> f = new CompletableFuture<>();
219 +        checkIncomplete(f);
220 +        f.completeExceptionally(new CFException());
221 +        checkCompletedWithWrappedCFException(f);
222 +    }
223 +
224 +    /**
225 +     * cancel completes exceptionally and reports cancelled, as indicated by
226 +     * methods isDone, isCancelled, join, get, and getNow
227 +     */
228 +    public void testCancel() {
229 +        CompletableFuture<Integer> f = new CompletableFuture<>();
230 +        checkIncomplete(f);
231 +        assertTrue(f.cancel(true));
232 +        checkCancelled(f);
233 +    }
234 +
235 +    /**
236 +     * obtrudeValue forces completion with given value
237 +     */
238 +    public void testObtrudeValue() {
239 +        CompletableFuture<Integer> f = new CompletableFuture<>();
240 +        checkIncomplete(f);
241 +        f.complete(one);
242 +        checkCompletedNormally(f, one);
243 +        f.obtrudeValue(three);
244 +        checkCompletedNormally(f, three);
245 +        f.obtrudeValue(two);
246 +        checkCompletedNormally(f, two);
247 +        f = new CompletableFuture<>();
248 +        f.obtrudeValue(three);
249 +        checkCompletedNormally(f, three);
250 +        f = new CompletableFuture<>();
251 +        f.completeExceptionally(new CFException());
252 +        f.obtrudeValue(four);
253 +        checkCompletedNormally(f, four);
254 +    }
255 +
256 +    /**
257 +     * obtrudeException forces completion with given exception
258 +     */
259 +    public void testObtrudeException() {
260 +        CompletableFuture<Integer> f = new CompletableFuture<>();
261 +        checkIncomplete(f);
262 +        f.complete(one);
263 +        checkCompletedNormally(f, one);
264 +        f.obtrudeException(new CFException());
265 +        checkCompletedWithWrappedCFException(f);
266 +        f = new CompletableFuture<>();
267 +        f.obtrudeException(new CFException());
268 +        checkCompletedWithWrappedCFException(f);
269 +        f = new CompletableFuture<>();
270 +        f.completeExceptionally(new CFException());
271 +        f.obtrudeValue(four);
272 +        checkCompletedNormally(f, four);
273 +        f.obtrudeException(new CFException());
274 +        checkCompletedWithWrappedCFException(f);
275 +    }
276 +
277 +    /**
278 +     * getNumberOfDependents returns number of dependent tasks
279 +     */
280 +    public void testGetNumberOfDependents() {
281 +        CompletableFuture<Integer> f = new CompletableFuture<>();
282 +        assertEquals(f.getNumberOfDependents(), 0);
283 +        CompletableFuture g = f.thenRun(new Noop());
284 +        assertEquals(f.getNumberOfDependents(), 1);
285 +        assertEquals(g.getNumberOfDependents(), 0);
286 +        CompletableFuture h = f.thenRun(new Noop());
287 +        assertEquals(f.getNumberOfDependents(), 2);
288 +        f.complete(1);
289 +        checkCompletedNormally(g, null);
290 +        assertEquals(f.getNumberOfDependents(), 0);
291 +        assertEquals(g.getNumberOfDependents(), 0);
292 +    }
293 +
294 +    /**
295 +     * toString indicates current completion state
296 +     */
297      public void testToString() {
298          CompletableFuture<String> f;
299  
# Line 41 | Line 307 | public class CompletableFutureTest exten
307          f.completeExceptionally(new IndexOutOfBoundsException());
308          assertTrue(f.toString().contains("[Completed exceptionally]"));
309      }
310 +
311 +    /**
312 +     * completedFuture returns a completed CompletableFuture with given value
313 +     */
314 +    public void testCompletedFuture() {
315 +        CompletableFuture<String> f = CompletableFuture.completedFuture("test");
316 +        checkCompletedNormally(f, "test");
317 +    }
318 +
319 +    // Choose non-commutative actions for better coverage
320 +
321 +    // A non-commutative function that handles and produces null values as well.
322 +    static Integer subtract(Integer x, Integer y) {
323 +        return (x == null && y == null) ? null :
324 +            ((x == null) ? 42 : x.intValue())
325 +            - ((y == null) ? 99 : y.intValue());
326 +    }
327 +
328 +    // A function that handles and produces null values as well.
329 +    static Integer inc(Integer x) {
330 +        return (x == null) ? null : x + 1;
331 +    }
332 +
333 +    static final Supplier<Integer> supplyOne =
334 +        () -> Integer.valueOf(1);
335 +    static final Function<Integer, Integer> inc =
336 +        (Integer x) -> Integer.valueOf(x.intValue() + 1);
337 +    static final BiFunction<Integer, Integer, Integer> subtract =
338 +        (Integer x, Integer y) -> subtract(x, y);
339 +    static final class IncAction implements Consumer<Integer> {
340 +        int invocationCount = 0;
341 +        Integer value;
342 +        public boolean ran() { return invocationCount == 1; }
343 +        public void accept(Integer x) {
344 +            invocationCount++;
345 +            value = inc(x);
346 +        }
347 +    }
348 +    static final class IncFunction implements Function<Integer,Integer> {
349 +        int invocationCount = 0;
350 +        Integer value;
351 +        public boolean ran() { return invocationCount == 1; }
352 +        public Integer apply(Integer x) {
353 +            invocationCount++;
354 +            return value = inc(x);
355 +        }
356 +    }
357 +    static final class SubtractAction implements BiConsumer<Integer, Integer> {
358 +        int invocationCount = 0;
359 +        Integer value;
360 +        // Check this action was invoked exactly once when result is computed.
361 +        public boolean ran() { return invocationCount == 1; }
362 +        public void accept(Integer x, Integer y) {
363 +            invocationCount++;
364 +            value = subtract(x, y);
365 +        }
366 +    }
367 +    static final class SubtractFunction implements BiFunction<Integer, Integer, Integer> {
368 +        int invocationCount = 0;
369 +        Integer value;
370 +        // Check this action was invoked exactly once when result is computed.
371 +        public boolean ran() { return invocationCount == 1; }
372 +        public Integer apply(Integer x, Integer y) {
373 +            invocationCount++;
374 +            return value = subtract(x, y);
375 +        }
376 +    }
377 +    static final class Noop implements Runnable {
378 +        int invocationCount = 0;
379 +        boolean ran;
380 +        public void run() {
381 +            invocationCount++;
382 +            ran = true;
383 +        }
384 +    }
385 +
386 +    static final class FailingSupplier implements Supplier<Integer> {
387 +        boolean ran;
388 +        public Integer get() { ran = true; throw new CFException(); }
389 +    }
390 +    static final class FailingConsumer implements Consumer<Integer> {
391 +        boolean ran;
392 +        public void accept(Integer x) { ran = true; throw new CFException(); }
393 +    }
394 +    static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
395 +        boolean ran;
396 +        public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
397 +    }
398 +    static final class FailingFunction implements Function<Integer, Integer> {
399 +        boolean ran;
400 +        public Integer apply(Integer x) { ran = true; throw new CFException(); }
401 +    }
402 +    static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
403 +        boolean ran;
404 +        public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
405 +    }
406 +    static final class FailingNoop implements Runnable {
407 +        boolean ran;
408 +        public void run() { ran = true; throw new CFException(); }
409 +    }
410 +
411 +    static final class CompletableFutureInc
412 +        implements Function<Integer, CompletableFuture<Integer>> {
413 +        boolean ran;
414 +        public CompletableFuture<Integer> apply(Integer x) {
415 +            ran = true;
416 +            CompletableFuture<Integer> f = new CompletableFuture<>();
417 +            f.complete(Integer.valueOf(x.intValue() + 1));
418 +            return f;
419 +        }
420 +    }
421 +
422 +    static final class FailingCompletableFutureFunction
423 +        implements Function<Integer, CompletableFuture<Integer>> {
424 +        boolean ran;
425 +        public CompletableFuture<Integer> apply(Integer x) {
426 +            ran = true; throw new CFException();
427 +        }
428 +    }
429 +
430 +    // Used for explicit executor tests
431 +    static final class ThreadExecutor implements Executor {
432 +        AtomicInteger count = new AtomicInteger(0);
433 +
434 +        public void execute(Runnable r) {
435 +            count.getAndIncrement();
436 +            new Thread(r).start();
437 +        }
438 +    }
439 +
440 +    static final class ExceptionToInteger implements Function<Throwable, Integer> {
441 +        public Integer apply(Throwable x) { return Integer.valueOf(3); }
442 +    }
443 +
444 +    static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
445 +        boolean ran;
446 +        public Integer apply(Integer x, Throwable t) {
447 +            ran = true;
448 +            return (t == null) ? two : three;
449 +        }
450 +    }
451 +
452 +    /**
453 +     * Permits the testing of parallel code for the 3 different
454 +     * execution modes without repeating all the testing code.
455 +     */
456 +    enum ExecutionMode {
457 +        DEFAULT {
458 +            public <T,U> CompletableFuture<Void> runAfterBoth
459 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
460 +                return f.runAfterBoth(g, a);
461 +            }
462 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
463 +                (CompletableFuture<T> f,
464 +                 CompletionStage<? extends U> g,
465 +                 BiConsumer<? super T,? super U> a) {
466 +                return f.thenAcceptBoth(g, a);
467 +            }
468 +            public <T,U,V> CompletableFuture<V> thenCombine
469 +                (CompletableFuture<T> f,
470 +                 CompletionStage<? extends U> g,
471 +                 BiFunction<? super T,? super U,? extends V> a) {
472 +                return f.thenCombine(g, a);
473 +            }
474 +            public <T,U> CompletableFuture<U> applyToEither
475 +                (CompletableFuture<T> f,
476 +                 CompletionStage<? extends T> g,
477 +                 Function<? super T,U> a) {
478 +                return f.applyToEither(g, a);
479 +            }
480 +            public <T> CompletableFuture<Void> acceptEither
481 +                (CompletableFuture<T> f,
482 +                 CompletionStage<? extends T> g,
483 +                 Consumer<? super T> a) {
484 +                return f.acceptEither(g, a);
485 +            }
486 +            public <T> CompletableFuture<Void> runAfterEither
487 +                (CompletableFuture<T> f,
488 +                 CompletionStage<?> g,
489 +                 java.lang.Runnable a) {
490 +                return f.runAfterEither(g, a);
491 +            }
492 +            public <T,U> CompletableFuture<U> thenCompose
493 +                (CompletableFuture<T> f,
494 +                 Function<? super T,? extends CompletionStage<U>> a) {
495 +                return f.thenCompose(a);
496 +            }
497 +            public <T> CompletableFuture<T> whenComplete
498 +                (CompletableFuture<T> f,
499 +                 BiConsumer<? super T,? super Throwable> a) {
500 +                return f.whenComplete(a);
501 +            }
502 +        },
503 +
504 + //             /** Experimental way to do more testing */
505 + //         REVERSE_DEFAULT {
506 + //             public <T,U> CompletableFuture<Void> runAfterBoth
507 + //                 (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
508 + //                 return g.runAfterBoth(f, a);
509 + //             }
510 + //             public <T,U> CompletableFuture<Void> thenAcceptBoth
511 + //                 (CompletableFuture<T> f,
512 + //                  CompletionStage<? extends U> g,
513 + //                  BiConsumer<? super T,? super U> a) {
514 + //                 return DEFAULT.thenAcceptBoth(f, g, a);
515 + //             }
516 + //         },
517 +
518 +        DEFAULT_ASYNC {
519 +            public <T,U> CompletableFuture<Void> runAfterBoth
520 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
521 +                return f.runAfterBothAsync(g, a);
522 +            }
523 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
524 +                (CompletableFuture<T> f,
525 +                 CompletionStage<? extends U> g,
526 +                 BiConsumer<? super T,? super U> a) {
527 +                return f.thenAcceptBothAsync(g, a);
528 +            }
529 +            public <T,U,V> CompletableFuture<V> thenCombine
530 +                (CompletableFuture<T> f,
531 +                 CompletionStage<? extends U> g,
532 +                 BiFunction<? super T,? super U,? extends V> a) {
533 +                return f.thenCombineAsync(g, a);
534 +            }
535 +            public <T,U> CompletableFuture<U> applyToEither
536 +                (CompletableFuture<T> f,
537 +                 CompletionStage<? extends T> g,
538 +                 Function<? super T,U> a) {
539 +                return f.applyToEitherAsync(g, a);
540 +            }
541 +            public <T> CompletableFuture<Void> acceptEither
542 +                (CompletableFuture<T> f,
543 +                 CompletionStage<? extends T> g,
544 +                 Consumer<? super T> a) {
545 +                return f.acceptEitherAsync(g, a);
546 +            }
547 +            public <T> CompletableFuture<Void> runAfterEither
548 +                (CompletableFuture<T> f,
549 +                 CompletionStage<?> g,
550 +                 java.lang.Runnable a) {
551 +                return f.runAfterEitherAsync(g, a);
552 +            }
553 +            public <T,U> CompletableFuture<U> thenCompose
554 +                (CompletableFuture<T> f,
555 +                 Function<? super T,? extends CompletionStage<U>> a) {
556 +                return f.thenComposeAsync(a);
557 +            }
558 +            public <T> CompletableFuture<T> whenComplete
559 +                (CompletableFuture<T> f,
560 +                 BiConsumer<? super T,? super Throwable> a) {
561 +                return f.whenCompleteAsync(a);
562 +            }
563 +        },
564 +
565 + //         REVERSE_DEFAULT_ASYNC {
566 + //             public <T,U> CompletableFuture<Void> runAfterBoth
567 + //                 (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
568 + //                 return f.runAfterBothAsync(g, a);
569 + //             }
570 + //             public <T,U> CompletableFuture<Void> thenAcceptBoth
571 + //                 (CompletableFuture<T> f,
572 + //                  CompletionStage<? extends U> g,
573 + //                  BiConsumer<? super T,? super U> a) {
574 + //                 return DEFAULT_ASYNC.thenAcceptBoth(f, g, a);
575 + //             }
576 + //         },
577 +
578 +        EXECUTOR {
579 +            public <T,U> CompletableFuture<Void> runAfterBoth
580 +                (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
581 +                return f.runAfterBothAsync(g, a, new ThreadExecutor());
582 +            }
583 +            public <T,U> CompletableFuture<Void> thenAcceptBoth
584 +                (CompletableFuture<T> f,
585 +                 CompletionStage<? extends U> g,
586 +                 BiConsumer<? super T,? super U> a) {
587 +                return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
588 +            }
589 +            public <T,U,V> CompletableFuture<V> thenCombine
590 +                (CompletableFuture<T> f,
591 +                 CompletionStage<? extends U> g,
592 +                 BiFunction<? super T,? super U,? extends V> a) {
593 +                return f.thenCombineAsync(g, a, new ThreadExecutor());
594 +            }
595 +            public <T,U> CompletableFuture<U> applyToEither
596 +                (CompletableFuture<T> f,
597 +                 CompletionStage<? extends T> g,
598 +                 Function<? super T,U> a) {
599 +                return f.applyToEitherAsync(g, a, new ThreadExecutor());
600 +            }
601 +            public <T> CompletableFuture<Void> acceptEither
602 +                (CompletableFuture<T> f,
603 +                 CompletionStage<? extends T> g,
604 +                 Consumer<? super T> a) {
605 +                return f.acceptEitherAsync(g, a, new ThreadExecutor());
606 +            }
607 +            public <T> CompletableFuture<Void> runAfterEither
608 +                (CompletableFuture<T> f,
609 +                 CompletionStage<?> g,
610 +                 java.lang.Runnable a) {
611 +                return f.runAfterEitherAsync(g, a, new ThreadExecutor());
612 +            }
613 +            public <T,U> CompletableFuture<U> thenCompose
614 +                (CompletableFuture<T> f,
615 +                 Function<? super T,? extends CompletionStage<U>> a) {
616 +                return f.thenComposeAsync(a, new ThreadExecutor());
617 +            }
618 +            public <T> CompletableFuture<T> whenComplete
619 +                (CompletableFuture<T> f,
620 +                 BiConsumer<? super T,? super Throwable> a) {
621 +                return f.whenCompleteAsync(a, new ThreadExecutor());
622 +            }
623 +        };
624 +
625 +        public abstract <T,U> CompletableFuture<Void> runAfterBoth
626 +            (CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
627 +        public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
628 +            (CompletableFuture<T> f,
629 +             CompletionStage<? extends U> g,
630 +             BiConsumer<? super T,? super U> a);
631 +        public abstract <T,U,V> CompletableFuture<V> thenCombine
632 +            (CompletableFuture<T> f,
633 +             CompletionStage<? extends U> g,
634 +             BiFunction<? super T,? super U,? extends V> a);
635 +        public abstract <T,U> CompletableFuture<U> applyToEither
636 +            (CompletableFuture<T> f,
637 +             CompletionStage<? extends T> g,
638 +             Function<? super T,U> a);
639 +        public abstract <T> CompletableFuture<Void> acceptEither
640 +            (CompletableFuture<T> f,
641 +             CompletionStage<? extends T> g,
642 +             Consumer<? super T> a);
643 +        public abstract <T> CompletableFuture<Void> runAfterEither
644 +            (CompletableFuture<T> f,
645 +             CompletionStage<?> g,
646 +             java.lang.Runnable a);
647 +        public abstract <T,U> CompletableFuture<U> thenCompose
648 +            (CompletableFuture<T> f,
649 +             Function<? super T,? extends CompletionStage<U>> a);
650 +        public abstract <T> CompletableFuture<T> whenComplete
651 +            (CompletableFuture<T> f,
652 +             BiConsumer<? super T,? super Throwable> a);
653 +
654 +
655 +    }
656 +
657 +    /**
658 +     * exceptionally action completes with function value on source
659 +     * exception; otherwise with source value
660 +     */
661 +    public void testExceptionally() {
662 +        CompletableFuture<Integer> f = new CompletableFuture<>();
663 +        ExceptionToInteger r = new ExceptionToInteger();
664 +        CompletableFuture<Integer> g = f.exceptionally(r);
665 +        f.completeExceptionally(new CFException());
666 +        checkCompletedNormally(g, three);
667 +
668 +        f = new CompletableFuture<>();
669 +        r = new ExceptionToInteger();
670 +        g = f.exceptionally(r);
671 +        f.complete(one);
672 +        checkCompletedNormally(g, one);
673 +    }
674 +
675 +    /**
676 +     * handle action completes normally with function value on either
677 +     * normal or exceptional completion of source
678 +     */
679 +    public void testHandle() {
680 +        CompletableFuture<Integer> f, g;
681 +        IntegerHandler r;
682 +
683 +        f = new CompletableFuture<>();
684 +        f.completeExceptionally(new CFException());
685 +        g = f.handle(r = new IntegerHandler());
686 +        assertTrue(r.ran);
687 +        checkCompletedNormally(g, three);
688 +
689 +        f = new CompletableFuture<>();
690 +        g = f.handle(r = new IntegerHandler());
691 +        assertFalse(r.ran);
692 +        f.completeExceptionally(new CFException());
693 +        checkCompletedNormally(g, three);
694 +        assertTrue(r.ran);
695 +
696 +        f = new CompletableFuture<>();
697 +        f.complete(one);
698 +        g = f.handle(r = new IntegerHandler());
699 +        assertTrue(r.ran);
700 +        checkCompletedNormally(g, two);
701 +
702 +        f = new CompletableFuture<>();
703 +        g = f.handle(r = new IntegerHandler());
704 +        assertFalse(r.ran);
705 +        f.complete(one);
706 +        assertTrue(r.ran);
707 +        checkCompletedNormally(g, two);
708 +    }
709 +
710 +    /**
711 +     * runAsync completes after running Runnable
712 +     */
713 +    public void testRunAsync() {
714 +        Noop r = new Noop();
715 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
716 +        assertNull(f.join());
717 +        assertTrue(r.ran);
718 +        checkCompletedNormally(f, null);
719 +    }
720 +
721 +    /**
722 +     * runAsync with executor completes after running Runnable
723 +     */
724 +    public void testRunAsync2() {
725 +        Noop r = new Noop();
726 +        ThreadExecutor exec = new ThreadExecutor();
727 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
728 +        assertNull(f.join());
729 +        assertTrue(r.ran);
730 +        checkCompletedNormally(f, null);
731 +        assertEquals(1, exec.count.get());
732 +    }
733 +
734 +    /**
735 +     * failing runAsync completes exceptionally after running Runnable
736 +     */
737 +    public void testRunAsync3() {
738 +        FailingNoop r = new FailingNoop();
739 +        CompletableFuture<Void> f = CompletableFuture.runAsync(r);
740 +        checkCompletedWithWrappedCFException(f);
741 +        assertTrue(r.ran);
742 +    }
743 +
744 +    /**
745 +     * supplyAsync completes with result of supplier
746 +     */
747 +    public void testSupplyAsync() {
748 +        CompletableFuture<Integer> f;
749 +        f = CompletableFuture.supplyAsync(supplyOne);
750 +        assertEquals(f.join(), one);
751 +        checkCompletedNormally(f, one);
752 +    }
753 +
754 +    /**
755 +     * supplyAsync with executor completes with result of supplier
756 +     */
757 +    public void testSupplyAsync2() {
758 +        CompletableFuture<Integer> f;
759 +        f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
760 +        assertEquals(f.join(), one);
761 +        checkCompletedNormally(f, one);
762 +    }
763 +
764 +    /**
765 +     * Failing supplyAsync completes exceptionally
766 +     */
767 +    public void testSupplyAsync3() {
768 +        FailingSupplier r = new FailingSupplier();
769 +        CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
770 +        checkCompletedWithWrappedCFException(f);
771 +        assertTrue(r.ran);
772 +    }
773 +
774 +    // seq completion methods
775 +
776 +    /**
777 +     * thenRun result completes normally after normal completion of source
778 +     */
779 +    public void testThenRun() {
780 +        CompletableFuture<Integer> f;
781 +        CompletableFuture<Void> g;
782 +        Noop r;
783 +
784 +        f = new CompletableFuture<>();
785 +        g = f.thenRun(r = new Noop());
786 +        f.complete(null);
787 +        checkCompletedNormally(g, null);
788 +        assertTrue(r.ran);
789 +
790 +        f = new CompletableFuture<>();
791 +        f.complete(null);
792 +        g = f.thenRun(r = new Noop());
793 +        checkCompletedNormally(g, null);
794 +        assertTrue(r.ran);
795 +    }
796 +
797 +    /**
798 +     * thenRun result completes exceptionally after exceptional
799 +     * completion of source
800 +     */
801 +    public void testThenRun2() {
802 +        CompletableFuture<Integer> f;
803 +        CompletableFuture<Void> g;
804 +        Noop r;
805 +
806 +        f = new CompletableFuture<>();
807 +        g = f.thenRun(r = new Noop());
808 +        f.completeExceptionally(new CFException());
809 +        checkCompletedWithWrappedCFException(g);
810 +        assertFalse(r.ran);
811 +
812 +        f = new CompletableFuture<>();
813 +        f.completeExceptionally(new CFException());
814 +        g = f.thenRun(r = new Noop());
815 +        checkCompletedWithWrappedCFException(g);
816 +        assertFalse(r.ran);
817 +    }
818 +
819 +    /**
820 +     * thenRun result completes exceptionally if action does
821 +     */
822 +    public void testThenRun3() {
823 +        CompletableFuture<Integer> f;
824 +        CompletableFuture<Void> g;
825 +        FailingNoop r;
826 +
827 +        f = new CompletableFuture<>();
828 +        g = f.thenRun(r = new FailingNoop());
829 +        f.complete(null);
830 +        checkCompletedWithWrappedCFException(g);
831 +
832 +        f = new CompletableFuture<>();
833 +        f.complete(null);
834 +        g = f.thenRun(r = new FailingNoop());
835 +        checkCompletedWithWrappedCFException(g);
836 +    }
837 +
838 +    /**
839 +     * thenRun result completes exceptionally if source cancelled
840 +     */
841 +    public void testThenRun4() {
842 +        CompletableFuture<Integer> f;
843 +        CompletableFuture<Void> g;
844 +        Noop r;
845 +
846 +        f = new CompletableFuture<>();
847 +        g = f.thenRun(r = new Noop());
848 +        assertTrue(f.cancel(true));
849 +        checkCompletedWithWrappedCancellationException(g);
850 +
851 +        f = new CompletableFuture<>();
852 +        assertTrue(f.cancel(true));
853 +        g = f.thenRun(r = new Noop());
854 +        checkCompletedWithWrappedCancellationException(g);
855 +    }
856 +
857 +    /**
858 +     * thenApply result completes normally after normal completion of source
859 +     */
860 +    public void testThenApply() {
861 +        CompletableFuture<Integer> f = new CompletableFuture<>();
862 +        CompletableFuture<Integer> g = f.thenApply(inc);
863 +        f.complete(one);
864 +        checkCompletedNormally(g, two);
865 +    }
866 +
867 +    /**
868 +     * thenApply result completes exceptionally after exceptional
869 +     * completion of source
870 +     */
871 +    public void testThenApply2() {
872 +        CompletableFuture<Integer> f = new CompletableFuture<>();
873 +        CompletableFuture<Integer> g = f.thenApply(inc);
874 +        f.completeExceptionally(new CFException());
875 +        checkCompletedWithWrappedCFException(g);
876 +    }
877 +
878 +    /**
879 +     * thenApply result completes exceptionally if action does
880 +     */
881 +    public void testThenApply3() {
882 +        CompletableFuture<Integer> f = new CompletableFuture<>();
883 +        CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
884 +        f.complete(one);
885 +        checkCompletedWithWrappedCFException(g);
886 +    }
887 +
888 +    /**
889 +     * thenApply result completes exceptionally if source cancelled
890 +     */
891 +    public void testThenApply4() {
892 +        CompletableFuture<Integer> f = new CompletableFuture<>();
893 +        CompletableFuture<Integer> g = f.thenApply(inc);
894 +        assertTrue(f.cancel(true));
895 +        checkCompletedWithWrappedCancellationException(g);
896 +    }
897 +
898 +    /**
899 +     * thenAccept result completes normally after normal completion of source
900 +     */
901 +    public void testThenAccept() {
902 +        CompletableFuture<Integer> f = new CompletableFuture<>();
903 +        IncAction r = new IncAction();
904 +        CompletableFuture<Void> g = f.thenAccept(r);
905 +        f.complete(one);
906 +        checkCompletedNormally(g, null);
907 +        assertEquals(r.value, (Integer) 2);
908 +    }
909 +
910 +    /**
911 +     * thenAccept result completes exceptionally after exceptional
912 +     * completion of source
913 +     */
914 +    public void testThenAccept2() {
915 +        CompletableFuture<Integer> f = new CompletableFuture<>();
916 +        IncAction r = new IncAction();
917 +        CompletableFuture<Void> g = f.thenAccept(r);
918 +        f.completeExceptionally(new CFException());
919 +        checkCompletedWithWrappedCFException(g);
920 +    }
921 +
922 +    /**
923 +     * thenAccept result completes exceptionally if action does
924 +     */
925 +    public void testThenAccept3() {
926 +        CompletableFuture<Integer> f = new CompletableFuture<>();
927 +        FailingConsumer r = new FailingConsumer();
928 +        CompletableFuture<Void> g = f.thenAccept(r);
929 +        f.complete(one);
930 +        checkCompletedWithWrappedCFException(g);
931 +        assertTrue(r.ran);
932 +    }
933 +
934 +    /**
935 +     * thenAccept result completes exceptionally if source cancelled
936 +     */
937 +    public void testThenAccept4() {
938 +        CompletableFuture<Integer> f = new CompletableFuture<>();
939 +        IncAction r = new IncAction();
940 +        CompletableFuture<Void> g = f.thenAccept(r);
941 +        assertTrue(f.cancel(true));
942 +        checkCompletedWithWrappedCancellationException(g);
943 +    }
944 +
945 +    /**
946 +     * thenCombine result completes normally after normal completion
947 +     * of sources
948 +     */
949 +    public void testThenCombine_normalCompletion1() {
950 +        for (ExecutionMode m : ExecutionMode.values())
951 +        for (Integer v1 : new Integer[] { 1, null })
952 +        for (Integer v2 : new Integer[] { 2, null }) {
953 +
954 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
955 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
956 +        final SubtractFunction r = new SubtractFunction();
957 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
958 +
959 +        f.complete(v1);
960 +        checkIncomplete(h);
961 +        assertEquals(r.invocationCount, 0);
962 +        g.complete(v2);
963 +
964 +        checkCompletedNormally(h, subtract(v1, v2));
965 +        checkCompletedNormally(f, v1);
966 +        checkCompletedNormally(g, v2);
967 +        assertEquals(r.invocationCount, 1);
968 +        }
969 +    }
970 +
971 +    public void testThenCombine_normalCompletion2() {
972 +        for (ExecutionMode m : ExecutionMode.values())
973 +        for (Integer v1 : new Integer[] { 1, null })
974 +        for (Integer v2 : new Integer[] { 2, null }) {
975 +
976 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
977 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
978 +        final SubtractFunction r = new SubtractFunction();
979 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
980 +
981 +        g.complete(v2);
982 +        checkIncomplete(h);
983 +        assertEquals(r.invocationCount, 0);
984 +        f.complete(v1);
985 +
986 +        checkCompletedNormally(h, subtract(v1, v2));
987 +        checkCompletedNormally(f, v1);
988 +        checkCompletedNormally(g, v2);
989 +        assertEquals(r.invocationCount, 1);
990 +        }
991 +    }
992 +
993 +    public void testThenCombine_normalCompletion3() {
994 +        for (ExecutionMode m : ExecutionMode.values())
995 +        for (Integer v1 : new Integer[] { 1, null })
996 +        for (Integer v2 : new Integer[] { 2, null }) {
997 +
998 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
999 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1000 +        final SubtractFunction r = new SubtractFunction();
1001 +
1002 +        g.complete(v2);
1003 +        f.complete(v1);
1004 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1005 +
1006 +        checkCompletedNormally(h, subtract(v1, v2));
1007 +        checkCompletedNormally(f, v1);
1008 +        checkCompletedNormally(g, v2);
1009 +        assertEquals(r.invocationCount, 1);
1010 +        }
1011 +    }
1012 +
1013 +    public void testThenCombine_normalCompletion4() {
1014 +        for (ExecutionMode m : ExecutionMode.values())
1015 +        for (Integer v1 : new Integer[] { 1, null })
1016 +        for (Integer v2 : new Integer[] { 2, null }) {
1017 +
1018 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1019 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1020 +        final SubtractFunction r = new SubtractFunction();
1021 +
1022 +        f.complete(v1);
1023 +        g.complete(v2);
1024 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1025 +
1026 +        checkCompletedNormally(h, subtract(v1, v2));
1027 +        checkCompletedNormally(f, v1);
1028 +        checkCompletedNormally(g, v2);
1029 +        assertEquals(r.invocationCount, 1);
1030 +        }
1031 +    }
1032 +
1033 +    /**
1034 +     * thenCombine result completes exceptionally after exceptional
1035 +     * completion of either source
1036 +     */
1037 +    public void testThenCombine_exceptionalCompletion1() {
1038 +        for (ExecutionMode m : ExecutionMode.values())
1039 +        for (Integer v1 : new Integer[] { 1, null }) {
1040 +
1041 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1042 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1043 +        final SubtractFunction r = new SubtractFunction();
1044 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1045 +        final CFException ex = new CFException();
1046 +
1047 +        f.completeExceptionally(ex);
1048 +        checkIncomplete(h);
1049 +        g.complete(v1);
1050 +
1051 +        checkCompletedWithWrappedCFException(h, ex);
1052 +        checkCompletedWithWrappedCFException(f, ex);
1053 +        assertEquals(r.invocationCount, 0);
1054 +        checkCompletedNormally(g, v1);
1055 +        }
1056 +    }
1057 +
1058 +    public void testThenCombine_exceptionalCompletion2() {
1059 +        for (ExecutionMode m : ExecutionMode.values())
1060 +        for (Integer v1 : new Integer[] { 1, null }) {
1061 +
1062 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1063 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1064 +        final SubtractFunction r = new SubtractFunction();
1065 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1066 +        final CFException ex = new CFException();
1067 +
1068 +        g.completeExceptionally(ex);
1069 +        checkIncomplete(h);
1070 +        f.complete(v1);
1071 +
1072 +        checkCompletedWithWrappedCFException(h, ex);
1073 +        checkCompletedWithWrappedCFException(g, ex);
1074 +        assertEquals(r.invocationCount, 0);
1075 +        checkCompletedNormally(f, v1);
1076 +        }
1077 +    }
1078 +
1079 +    public void testThenCombine_exceptionalCompletion3() {
1080 +        for (ExecutionMode m : ExecutionMode.values())
1081 +        for (Integer v1 : new Integer[] { 1, null }) {
1082 +
1083 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1084 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1085 +        final SubtractFunction r = new SubtractFunction();
1086 +        final CFException ex = new CFException();
1087 +
1088 +        g.completeExceptionally(ex);
1089 +        f.complete(v1);
1090 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1091 +
1092 +        checkCompletedWithWrappedCFException(h, ex);
1093 +        checkCompletedWithWrappedCFException(g, ex);
1094 +        assertEquals(r.invocationCount, 0);
1095 +        checkCompletedNormally(f, v1);
1096 +        }
1097 +    }
1098 +
1099 +    public void testThenCombine_exceptionalCompletion4() {
1100 +        for (ExecutionMode m : ExecutionMode.values())
1101 +        for (Integer v1 : new Integer[] { 1, null }) {
1102 +
1103 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1104 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1105 +        final SubtractFunction r = new SubtractFunction();
1106 +        final CFException ex = new CFException();
1107 +
1108 +        f.completeExceptionally(ex);
1109 +        g.complete(v1);
1110 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1111 +
1112 +        checkCompletedWithWrappedCFException(h, ex);
1113 +        checkCompletedWithWrappedCFException(f, ex);
1114 +        assertEquals(r.invocationCount, 0);
1115 +        checkCompletedNormally(g, v1);
1116 +        }
1117 +    }
1118 +
1119 +    /**
1120 +     * thenCombine result completes exceptionally if action does
1121 +     */
1122 +    public void testThenCombine_actionFailed1() {
1123 +        for (ExecutionMode m : ExecutionMode.values())
1124 +        for (Integer v1 : new Integer[] { 1, null })
1125 +        for (Integer v2 : new Integer[] { 2, null }) {
1126 +
1127 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1128 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1129 +        final FailingBiFunction r = new FailingBiFunction();
1130 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1131 +
1132 +        f.complete(v1);
1133 +        checkIncomplete(h);
1134 +        g.complete(v2);
1135 +
1136 +        checkCompletedWithWrappedCFException(h);
1137 +        checkCompletedNormally(f, v1);
1138 +        checkCompletedNormally(g, v2);
1139 +        }
1140 +    }
1141 +
1142 +    public void testThenCombine_actionFailed2() {
1143 +        for (ExecutionMode m : ExecutionMode.values())
1144 +        for (Integer v1 : new Integer[] { 1, null })
1145 +        for (Integer v2 : new Integer[] { 2, null }) {
1146 +
1147 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1148 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1149 +        final FailingBiFunction r = new FailingBiFunction();
1150 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1151 +
1152 +        g.complete(v2);
1153 +        checkIncomplete(h);
1154 +        f.complete(v1);
1155 +
1156 +        checkCompletedWithWrappedCFException(h);
1157 +        checkCompletedNormally(f, v1);
1158 +        checkCompletedNormally(g, v2);
1159 +        }
1160 +    }
1161 +
1162 +    /**
1163 +     * thenCombine result completes exceptionally if either source cancelled
1164 +     */
1165 +    public void testThenCombine_sourceCancelled1() {
1166 +        for (ExecutionMode m : ExecutionMode.values())
1167 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1168 +        for (Integer v1 : new Integer[] { 1, null }) {
1169 +
1170 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1171 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1172 +        final SubtractFunction r = new SubtractFunction();
1173 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1174 +
1175 +        assertTrue(f.cancel(mayInterruptIfRunning));
1176 +        checkIncomplete(h);
1177 +        g.complete(v1);
1178 +
1179 +        checkCompletedWithWrappedCancellationException(h);
1180 +        checkCancelled(f);
1181 +        assertEquals(r.invocationCount, 0);
1182 +        checkCompletedNormally(g, v1);
1183 +        }
1184 +    }
1185 +
1186 +    public void testThenCombine_sourceCancelled2() {
1187 +        for (ExecutionMode m : ExecutionMode.values())
1188 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1189 +        for (Integer v1 : new Integer[] { 1, null }) {
1190 +
1191 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1192 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1193 +        final SubtractFunction r = new SubtractFunction();
1194 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1195 +
1196 +        assertTrue(g.cancel(mayInterruptIfRunning));
1197 +        checkIncomplete(h);
1198 +        f.complete(v1);
1199 +
1200 +        checkCompletedWithWrappedCancellationException(h);
1201 +        checkCancelled(g);
1202 +        assertEquals(r.invocationCount, 0);
1203 +        checkCompletedNormally(f, v1);
1204 +        }
1205 +    }
1206 +
1207 +    public void testThenCombine_sourceCancelled3() {
1208 +        for (ExecutionMode m : ExecutionMode.values())
1209 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1210 +        for (Integer v1 : new Integer[] { 1, null }) {
1211 +
1212 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1213 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1214 +        final SubtractFunction r = new SubtractFunction();
1215 +
1216 +        assertTrue(g.cancel(mayInterruptIfRunning));
1217 +        f.complete(v1);
1218 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1219 +
1220 +        checkCompletedWithWrappedCancellationException(h);
1221 +        checkCancelled(g);
1222 +        assertEquals(r.invocationCount, 0);
1223 +        checkCompletedNormally(f, v1);
1224 +        }
1225 +    }
1226 +
1227 +    public void testThenCombine_sourceCancelled4() {
1228 +        for (ExecutionMode m : ExecutionMode.values())
1229 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1230 +        for (Integer v1 : new Integer[] { 1, null }) {
1231 +
1232 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1233 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1234 +        final SubtractFunction r = new SubtractFunction();
1235 +
1236 +        assertTrue(f.cancel(mayInterruptIfRunning));
1237 +        g.complete(v1);
1238 +        final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1239 +
1240 +        checkCompletedWithWrappedCancellationException(h);
1241 +        checkCancelled(f);
1242 +        assertEquals(r.invocationCount, 0);
1243 +        checkCompletedNormally(g, v1);
1244 +        }
1245 +    }
1246 +
1247 +    /**
1248 +     * thenAcceptBoth result completes normally after normal
1249 +     * completion of sources
1250 +     */
1251 +    public void testThenAcceptBoth_normalCompletion1() {
1252 +        for (ExecutionMode m : ExecutionMode.values())
1253 +        for (Integer v1 : new Integer[] { 1, null })
1254 +        for (Integer v2 : new Integer[] { 2, null }) {
1255 +
1256 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1257 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1258 +        final SubtractAction r = new SubtractAction();
1259 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1260 +
1261 +        f.complete(v1);
1262 +        checkIncomplete(h);
1263 +        assertFalse(r.ran());
1264 +        g.complete(v2);
1265 +
1266 +        checkCompletedNormally(h, null);
1267 +        assertEquals(r.value, subtract(v1, v2));
1268 +        checkCompletedNormally(f, v1);
1269 +        checkCompletedNormally(g, v2);
1270 +        }
1271 +    }
1272 +
1273 +    public void testThenAcceptBoth_normalCompletion2() {
1274 +        for (ExecutionMode m : ExecutionMode.values())
1275 +        for (Integer v1 : new Integer[] { 1, null })
1276 +        for (Integer v2 : new Integer[] { 2, null }) {
1277 +
1278 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1279 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1280 +        final SubtractAction r = new SubtractAction();
1281 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1282 +
1283 +        g.complete(v2);
1284 +        checkIncomplete(h);
1285 +        assertFalse(r.ran());
1286 +        f.complete(v1);
1287 +
1288 +        checkCompletedNormally(h, null);
1289 +        assertEquals(r.value, subtract(v1, v2));
1290 +        checkCompletedNormally(f, v1);
1291 +        checkCompletedNormally(g, v2);
1292 +        }
1293 +    }
1294 +
1295 +    public void testThenAcceptBoth_normalCompletion3() {
1296 +        for (ExecutionMode m : ExecutionMode.values())
1297 +        for (Integer v1 : new Integer[] { 1, null })
1298 +        for (Integer v2 : new Integer[] { 2, null }) {
1299 +
1300 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1301 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1302 +        final SubtractAction r = new SubtractAction();
1303 +
1304 +        g.complete(v2);
1305 +        f.complete(v1);
1306 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1307 +
1308 +        checkCompletedNormally(h, null);
1309 +        assertEquals(r.value, subtract(v1, v2));
1310 +        checkCompletedNormally(f, v1);
1311 +        checkCompletedNormally(g, v2);
1312 +        }
1313 +    }
1314 +
1315 +    public void testThenAcceptBoth_normalCompletion4() {
1316 +        for (ExecutionMode m : ExecutionMode.values())
1317 +        for (Integer v1 : new Integer[] { 1, null })
1318 +        for (Integer v2 : new Integer[] { 2, null }) {
1319 +
1320 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1321 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1322 +        final SubtractAction r = new SubtractAction();
1323 +
1324 +        f.complete(v1);
1325 +        g.complete(v2);
1326 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1327 +
1328 +        checkCompletedNormally(h, null);
1329 +        assertEquals(r.value, subtract(v1, v2));
1330 +        checkCompletedNormally(f, v1);
1331 +        checkCompletedNormally(g, v2);
1332 +        }
1333 +    }
1334 +
1335 +    /**
1336 +     * thenAcceptBoth result completes exceptionally after exceptional
1337 +     * completion of either source
1338 +     */
1339 +    public void testThenAcceptBoth_exceptionalCompletion1() {
1340 +        for (ExecutionMode m : ExecutionMode.values())
1341 +        for (Integer v1 : new Integer[] { 1, null }) {
1342 +
1343 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1344 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1345 +        final SubtractAction r = new SubtractAction();
1346 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1347 +        final CFException ex = new CFException();
1348 +
1349 +        f.completeExceptionally(ex);
1350 +        checkIncomplete(h);
1351 +        g.complete(v1);
1352 +
1353 +        checkCompletedWithWrappedCFException(h, ex);
1354 +        checkCompletedWithWrappedCFException(f, ex);
1355 +        assertEquals(r.invocationCount, 0);
1356 +        checkCompletedNormally(g, v1);
1357 +        }
1358 +    }
1359 +
1360 +    public void testThenAcceptBoth_exceptionalCompletion2() {
1361 +        for (ExecutionMode m : ExecutionMode.values())
1362 +        for (Integer v1 : new Integer[] { 1, null }) {
1363 +
1364 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1365 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1366 +        final SubtractAction r = new SubtractAction();
1367 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1368 +        final CFException ex = new CFException();
1369 +
1370 +        g.completeExceptionally(ex);
1371 +        checkIncomplete(h);
1372 +        f.complete(v1);
1373 +
1374 +        checkCompletedWithWrappedCFException(h, ex);
1375 +        checkCompletedWithWrappedCFException(g, ex);
1376 +        assertEquals(r.invocationCount, 0);
1377 +        checkCompletedNormally(f, v1);
1378 +        }
1379 +    }
1380 +
1381 +    public void testThenAcceptBoth_exceptionalCompletion3() {
1382 +        for (ExecutionMode m : ExecutionMode.values())
1383 +        for (Integer v1 : new Integer[] { 1, null }) {
1384 +
1385 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1386 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1387 +        final SubtractAction r = new SubtractAction();
1388 +        final CFException ex = new CFException();
1389 +
1390 +        g.completeExceptionally(ex);
1391 +        f.complete(v1);
1392 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1393 +
1394 +        checkCompletedWithWrappedCFException(h, ex);
1395 +        checkCompletedWithWrappedCFException(g, ex);
1396 +        assertEquals(r.invocationCount, 0);
1397 +        checkCompletedNormally(f, v1);
1398 +        }
1399 +    }
1400 +
1401 +    public void testThenAcceptBoth_exceptionalCompletion4() {
1402 +        for (ExecutionMode m : ExecutionMode.values())
1403 +        for (Integer v1 : new Integer[] { 1, null }) {
1404 +
1405 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1406 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1407 +        final SubtractAction r = new SubtractAction();
1408 +        final CFException ex = new CFException();
1409 +
1410 +        f.completeExceptionally(ex);
1411 +        g.complete(v1);
1412 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1413 +
1414 +        checkCompletedWithWrappedCFException(h, ex);
1415 +        checkCompletedWithWrappedCFException(f, ex);
1416 +        assertFalse(r.ran());
1417 +        checkCompletedNormally(g, v1);
1418 +        }
1419 +    }
1420 +
1421 +    /**
1422 +     * thenAcceptBoth result completes exceptionally if action does
1423 +     */
1424 +    public void testThenAcceptBoth_actionFailed1() {
1425 +        for (ExecutionMode m : ExecutionMode.values())
1426 +        for (Integer v1 : new Integer[] { 1, null })
1427 +        for (Integer v2 : new Integer[] { 2, null }) {
1428 +
1429 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1430 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1431 +        final FailingBiConsumer r = new FailingBiConsumer();
1432 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1433 +
1434 +        f.complete(v1);
1435 +        checkIncomplete(h);
1436 +        g.complete(v2);
1437 +
1438 +        checkCompletedWithWrappedCFException(h);
1439 +        checkCompletedNormally(f, v1);
1440 +        checkCompletedNormally(g, v2);
1441 +        }
1442 +    }
1443 +
1444 +    public void testThenAcceptBoth_actionFailed2() {
1445 +        for (ExecutionMode m : ExecutionMode.values())
1446 +        for (Integer v1 : new Integer[] { 1, null })
1447 +        for (Integer v2 : new Integer[] { 2, null }) {
1448 +
1449 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1450 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1451 +        final FailingBiConsumer r = new FailingBiConsumer();
1452 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1453 +
1454 +        g.complete(v2);
1455 +        checkIncomplete(h);
1456 +        f.complete(v1);
1457 +
1458 +        checkCompletedWithWrappedCFException(h);
1459 +        checkCompletedNormally(f, v1);
1460 +        checkCompletedNormally(g, v2);
1461 +        }
1462 +    }
1463 +
1464 +    /**
1465 +     * thenAcceptBoth result completes exceptionally if either source cancelled
1466 +     */
1467 +    public void testThenAcceptBoth_sourceCancelled1() {
1468 +        for (ExecutionMode m : ExecutionMode.values())
1469 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1470 +        for (Integer v1 : new Integer[] { 1, null }) {
1471 +
1472 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1473 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1474 +        final SubtractAction r = new SubtractAction();
1475 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1476 +
1477 +        assertTrue(f.cancel(mayInterruptIfRunning));
1478 +        checkIncomplete(h);
1479 +        g.complete(v1);
1480 +
1481 +        checkCompletedWithWrappedCancellationException(h);
1482 +        checkCancelled(f);
1483 +        assertEquals(r.invocationCount, 0);
1484 +        checkCompletedNormally(g, v1);
1485 +        }
1486 +    }
1487 +
1488 +    public void testThenAcceptBoth_sourceCancelled2() {
1489 +        for (ExecutionMode m : ExecutionMode.values())
1490 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1491 +        for (Integer v1 : new Integer[] { 1, null }) {
1492 +
1493 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1494 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1495 +        final SubtractAction r = new SubtractAction();
1496 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1497 +
1498 +        assertTrue(g.cancel(mayInterruptIfRunning));
1499 +        checkIncomplete(h);
1500 +        f.complete(v1);
1501 +
1502 +        checkCompletedWithWrappedCancellationException(h);
1503 +        checkCancelled(g);
1504 +        assertEquals(r.invocationCount, 0);
1505 +        checkCompletedNormally(f, v1);
1506 +        }
1507 +    }
1508 +
1509 +    public void testThenAcceptBoth_sourceCancelled3() {
1510 +        for (ExecutionMode m : ExecutionMode.values())
1511 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1512 +        for (Integer v1 : new Integer[] { 1, null }) {
1513 +
1514 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1515 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1516 +        final SubtractAction r = new SubtractAction();
1517 +
1518 +        assertTrue(g.cancel(mayInterruptIfRunning));
1519 +        f.complete(v1);
1520 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1521 +
1522 +        checkCompletedWithWrappedCancellationException(h);
1523 +        checkCancelled(g);
1524 +        assertEquals(r.invocationCount, 0);
1525 +        checkCompletedNormally(f, v1);
1526 +        }
1527 +    }
1528 +
1529 +    public void testThenAcceptBoth_sourceCancelled4() {
1530 +        for (ExecutionMode m : ExecutionMode.values())
1531 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1532 +        for (Integer v1 : new Integer[] { 1, null }) {
1533 +
1534 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1535 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1536 +        final SubtractAction r = new SubtractAction();
1537 +
1538 +        assertTrue(f.cancel(mayInterruptIfRunning));
1539 +        g.complete(v1);
1540 +        final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1541 +
1542 +        checkCompletedWithWrappedCancellationException(h);
1543 +        checkCancelled(f);
1544 +        assertEquals(r.invocationCount, 0);
1545 +        checkCompletedNormally(g, v1);
1546 +        }
1547 +    }
1548 +
1549 +    /**
1550 +     * runAfterBoth result completes normally after normal
1551 +     * completion of sources
1552 +     */
1553 +    public void testRunAfterBoth_normalCompletion1() {
1554 +        for (ExecutionMode m : ExecutionMode.values())
1555 +        for (Integer v1 : new Integer[] { 1, null })
1556 +        for (Integer v2 : new Integer[] { 2, null }) {
1557 +
1558 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1559 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1560 +        final Noop r = new Noop();
1561 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1562 +
1563 +        f.complete(v1);
1564 +        checkIncomplete(h);
1565 +        assertFalse(r.ran);
1566 +        g.complete(v2);
1567 +
1568 +        checkCompletedNormally(h, null);
1569 +        assertEquals(r.invocationCount, 1);
1570 +        checkCompletedNormally(f, v1);
1571 +        checkCompletedNormally(g, v2);
1572 +        }
1573 +    }
1574 +
1575 +    public void testRunAfterBoth_normalCompletion2() {
1576 +        for (ExecutionMode m : ExecutionMode.values())
1577 +        for (Integer v1 : new Integer[] { 1, null })
1578 +        for (Integer v2 : new Integer[] { 2, null }) {
1579 +
1580 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1581 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1582 +        final Noop r = new Noop();
1583 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1584 +
1585 +        g.complete(v2);
1586 +        checkIncomplete(h);
1587 +        assertFalse(r.ran);
1588 +        f.complete(v1);
1589 +
1590 +        checkCompletedNormally(h, null);
1591 +        assertEquals(r.invocationCount, 1);
1592 +        checkCompletedNormally(f, v1);
1593 +        checkCompletedNormally(g, v2);
1594 +        }
1595 +    }
1596 +
1597 +    public void testRunAfterBoth_normalCompletion3() {
1598 +        for (ExecutionMode m : ExecutionMode.values())
1599 +        for (Integer v1 : new Integer[] { 1, null })
1600 +        for (Integer v2 : new Integer[] { 2, null }) {
1601 +
1602 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1603 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1604 +        final Noop r = new Noop();
1605 +
1606 +        g.complete(v2);
1607 +        f.complete(v1);
1608 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1609 +
1610 +        checkCompletedNormally(h, null);
1611 +        assertTrue(r.ran);
1612 +        checkCompletedNormally(f, v1);
1613 +        checkCompletedNormally(g, v2);
1614 +        }
1615 +    }
1616 +
1617 +    public void testRunAfterBoth_normalCompletion4() {
1618 +        for (ExecutionMode m : ExecutionMode.values())
1619 +        for (Integer v1 : new Integer[] { 1, null })
1620 +        for (Integer v2 : new Integer[] { 2, null }) {
1621 +
1622 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1623 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1624 +        final Noop r = new Noop();
1625 +
1626 +        f.complete(v1);
1627 +        g.complete(v2);
1628 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1629 +
1630 +        checkCompletedNormally(h, null);
1631 +        assertEquals(r.invocationCount, 1);
1632 +        checkCompletedNormally(f, v1);
1633 +        checkCompletedNormally(g, v2);
1634 +        }
1635 +    }
1636 +
1637 +    /**
1638 +     * runAfterBoth result completes exceptionally after exceptional
1639 +     * completion of either source
1640 +     */
1641 +    public void testRunAfterBoth_exceptionalCompletion1() {
1642 +        for (ExecutionMode m : ExecutionMode.values())
1643 +        for (Integer v1 : new Integer[] { 1, null }) {
1644 +
1645 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1646 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1647 +        final Noop r = new Noop();
1648 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1649 +        final CFException ex = new CFException();
1650 +
1651 +        f.completeExceptionally(ex);
1652 +        checkIncomplete(h);
1653 +        g.complete(v1);
1654 +
1655 +        checkCompletedWithWrappedCFException(h, ex);
1656 +        checkCompletedWithWrappedCFException(f, ex);
1657 +        assertEquals(r.invocationCount, 0);
1658 +        checkCompletedNormally(g, v1);
1659 +        }
1660 +    }
1661 +
1662 +    public void testRunAfterBoth_exceptionalCompletion2() {
1663 +        for (ExecutionMode m : ExecutionMode.values())
1664 +        for (Integer v1 : new Integer[] { 1, null }) {
1665 +
1666 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1667 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1668 +        final Noop r = new Noop();
1669 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1670 +        final CFException ex = new CFException();
1671 +
1672 +        g.completeExceptionally(ex);
1673 +        checkIncomplete(h);
1674 +        f.complete(v1);
1675 +
1676 +        checkCompletedWithWrappedCFException(h, ex);
1677 +        checkCompletedWithWrappedCFException(g, ex);
1678 +        assertEquals(r.invocationCount, 0);
1679 +        checkCompletedNormally(f, v1);
1680 +        }
1681 +    }
1682 +
1683 +    public void testRunAfterBoth_exceptionalCompletion3() {
1684 +        for (ExecutionMode m : ExecutionMode.values())
1685 +        for (Integer v1 : new Integer[] { 1, null }) {
1686 +
1687 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1688 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1689 +        final Noop r = new Noop();
1690 +        final CFException ex = new CFException();
1691 +
1692 +        g.completeExceptionally(ex);
1693 +        f.complete(v1);
1694 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1695 +
1696 +        checkCompletedWithWrappedCFException(h, ex);
1697 +        checkCompletedWithWrappedCFException(g, ex);
1698 +        assertEquals(r.invocationCount, 0);
1699 +        checkCompletedNormally(f, v1);
1700 +        }
1701 +    }
1702 +
1703 +    public void testRunAfterBoth_exceptionalCompletion4() {
1704 +        for (ExecutionMode m : ExecutionMode.values())
1705 +        for (Integer v1 : new Integer[] { 1, null }) {
1706 +
1707 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1708 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1709 +        final Noop r = new Noop();
1710 +        final CFException ex = new CFException();
1711 +
1712 +        f.completeExceptionally(ex);
1713 +        g.complete(v1);
1714 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1715 +
1716 +        checkCompletedWithWrappedCFException(h, ex);
1717 +        checkCompletedWithWrappedCFException(f, ex);
1718 +        assertEquals(r.invocationCount, 0);
1719 +        checkCompletedNormally(g, v1);
1720 +        }
1721 +    }
1722 +
1723 +    /**
1724 +     * runAfterBoth result completes exceptionally if action does
1725 +     */
1726 +    public void testRunAfterBoth_actionFailed1() {
1727 +        for (ExecutionMode m : ExecutionMode.values())
1728 +        for (Integer v1 : new Integer[] { 1, null })
1729 +        for (Integer v2 : new Integer[] { 2, null }) {
1730 +
1731 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1732 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1733 +        final FailingNoop r = new FailingNoop();
1734 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1735 +
1736 +        f.complete(v1);
1737 +        checkIncomplete(h);
1738 +        g.complete(v2);
1739 +
1740 +        checkCompletedWithWrappedCFException(h);
1741 +        checkCompletedNormally(f, v1);
1742 +        checkCompletedNormally(g, v2);
1743 +        }
1744 +    }
1745 +
1746 +    public void testRunAfterBoth_actionFailed2() {
1747 +        for (ExecutionMode m : ExecutionMode.values())
1748 +        for (Integer v1 : new Integer[] { 1, null })
1749 +        for (Integer v2 : new Integer[] { 2, null }) {
1750 +
1751 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1752 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1753 +        final FailingNoop r = new FailingNoop();
1754 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1755 +
1756 +        g.complete(v2);
1757 +        checkIncomplete(h);
1758 +        f.complete(v1);
1759 +
1760 +        checkCompletedWithWrappedCFException(h);
1761 +        checkCompletedNormally(f, v1);
1762 +        checkCompletedNormally(g, v2);
1763 +        }
1764 +    }
1765 +
1766 +    /**
1767 +     * runAfterBoth result completes exceptionally if either source cancelled
1768 +     */
1769 +    public void testRunAfterBoth_sourceCancelled1() {
1770 +        for (ExecutionMode m : ExecutionMode.values())
1771 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1772 +        for (Integer v1 : new Integer[] { 1, null }) {
1773 +
1774 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1775 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1776 +        final Noop r = new Noop();
1777 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1778 +
1779 +        assertTrue(f.cancel(mayInterruptIfRunning));
1780 +        checkIncomplete(h);
1781 +        g.complete(v1);
1782 +
1783 +        checkCompletedWithWrappedCancellationException(h);
1784 +        checkCancelled(f);
1785 +        assertEquals(r.invocationCount, 0);
1786 +        checkCompletedNormally(g, v1);
1787 +        }
1788 +    }
1789 +
1790 +    public void testRunAfterBoth_sourceCancelled2() {
1791 +        for (ExecutionMode m : ExecutionMode.values())
1792 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1793 +        for (Integer v1 : new Integer[] { 1, null }) {
1794 +
1795 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1796 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1797 +        final Noop r = new Noop();
1798 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1799 +
1800 +        assertTrue(g.cancel(mayInterruptIfRunning));
1801 +        checkIncomplete(h);
1802 +        f.complete(v1);
1803 +
1804 +        checkCompletedWithWrappedCancellationException(h);
1805 +        checkCancelled(g);
1806 +        assertEquals(r.invocationCount, 0);
1807 +        checkCompletedNormally(f, v1);
1808 +        }
1809 +    }
1810 +
1811 +    public void testRunAfterBoth_sourceCancelled3() {
1812 +        for (ExecutionMode m : ExecutionMode.values())
1813 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1814 +        for (Integer v1 : new Integer[] { 1, null }) {
1815 +
1816 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1817 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1818 +        final Noop r = new Noop();
1819 +
1820 +        assertTrue(g.cancel(mayInterruptIfRunning));
1821 +        f.complete(v1);
1822 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1823 +
1824 +        checkCompletedWithWrappedCancellationException(h);
1825 +        checkCancelled(g);
1826 +        assertEquals(r.invocationCount, 0);
1827 +        checkCompletedNormally(f, v1);
1828 +        }
1829 +    }
1830 +
1831 +    public void testRunAfterBoth_sourceCancelled4() {
1832 +        for (ExecutionMode m : ExecutionMode.values())
1833 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1834 +        for (Integer v1 : new Integer[] { 1, null }) {
1835 +
1836 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1837 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1838 +        final Noop r = new Noop();
1839 +
1840 +        assertTrue(f.cancel(mayInterruptIfRunning));
1841 +        g.complete(v1);
1842 +        final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1843 +
1844 +        checkCompletedWithWrappedCancellationException(h);
1845 +        checkCancelled(f);
1846 +        assertEquals(r.invocationCount, 0);
1847 +        checkCompletedNormally(g, v1);
1848 +        }
1849 +    }
1850 +
1851 +    /**
1852 +     * applyToEither result completes normally after normal completion
1853 +     * of either source
1854 +     */
1855 +    public void testApplyToEither_normalCompletion1() {
1856 +        for (ExecutionMode m : ExecutionMode.values())
1857 +        for (Integer v1 : new Integer[] { 1, null })
1858 +        for (Integer v2 : new Integer[] { 2, null }) {
1859 +
1860 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1861 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1862 +        final IncFunction r = new IncFunction();
1863 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1864 +
1865 +        f.complete(v1);
1866 +        checkCompletedNormally(h, inc(v1));
1867 +        g.complete(v2);
1868 +
1869 +        checkCompletedNormally(f, v1);
1870 +        checkCompletedNormally(g, v2);
1871 +        checkCompletedNormally(h, inc(v1));
1872 +        }
1873 +    }
1874 +
1875 +    public void testApplyToEither_normalCompletion2() {
1876 +        for (ExecutionMode m : ExecutionMode.values())
1877 +        for (Integer v1 : new Integer[] { 1, null })
1878 +        for (Integer v2 : new Integer[] { 2, null }) {
1879 +
1880 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1881 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1882 +        final IncFunction r = new IncFunction();
1883 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1884 +
1885 +        g.complete(v2);
1886 +        checkCompletedNormally(h, inc(v2));
1887 +        f.complete(v1);
1888 +
1889 +        checkCompletedNormally(f, v1);
1890 +        checkCompletedNormally(g, v2);
1891 +        checkCompletedNormally(h, inc(v2));
1892 +        }
1893 +    }
1894 +    public void testApplyToEither_normalCompletion3() {
1895 +        for (ExecutionMode m : ExecutionMode.values())
1896 +        for (Integer v1 : new Integer[] { 1, null })
1897 +        for (Integer v2 : new Integer[] { 2, null }) {
1898 +
1899 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1900 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1901 +        final IncFunction r = new IncFunction();
1902 +
1903 +        f.complete(v1);
1904 +        g.complete(v2);
1905 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1906 +
1907 +        checkCompletedNormally(f, v1);
1908 +        checkCompletedNormally(g, v2);
1909 +
1910 +        // unspecified behavior
1911 +        assertTrue(Objects.equals(h.join(), inc(v1)) ||
1912 +                   Objects.equals(h.join(), inc(v2)));
1913 +        assertEquals(r.invocationCount, 1);
1914 +        }
1915 +    }
1916 +
1917 +    /**
1918 +     * applyToEither result completes exceptionally after exceptional
1919 +     * completion of either source
1920 +     */
1921 +    public void testApplyToEither_exceptionalCompletion1() {
1922 +        for (ExecutionMode m : ExecutionMode.values())
1923 +        for (Integer v1 : new Integer[] { 1, null }) {
1924 +
1925 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1926 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1927 +        final IncFunction r = new IncFunction();
1928 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1929 +        final CFException ex = new CFException();
1930 +
1931 +        f.completeExceptionally(ex);
1932 +        checkCompletedWithWrappedCFException(h, ex);
1933 +        g.complete(v1);
1934 +
1935 +        assertEquals(r.invocationCount, 0);
1936 +        checkCompletedNormally(g, v1);
1937 +        checkCompletedWithWrappedCFException(f, ex);
1938 +        checkCompletedWithWrappedCFException(h, ex);
1939 +        }
1940 +    }
1941 +
1942 +    public void testApplyToEither_exceptionalCompletion2() {
1943 +        for (ExecutionMode m : ExecutionMode.values())
1944 +        for (Integer v1 : new Integer[] { 1, null }) {
1945 +
1946 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1947 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1948 +        final IncFunction r = new IncFunction();
1949 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1950 +        final CFException ex = new CFException();
1951 +
1952 +        g.completeExceptionally(ex);
1953 +        checkCompletedWithWrappedCFException(h, ex);
1954 +        f.complete(v1);
1955 +
1956 +        assertEquals(r.invocationCount, 0);
1957 +        checkCompletedNormally(f, v1);
1958 +        checkCompletedWithWrappedCFException(g, ex);
1959 +        checkCompletedWithWrappedCFException(h, ex);
1960 +        }
1961 +    }
1962 +
1963 +    public void testApplyToEither_exceptionalCompletion3() {
1964 +        for (ExecutionMode m : ExecutionMode.values())
1965 +        for (Integer v1 : new Integer[] { 1, null }) {
1966 +
1967 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1968 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1969 +        final IncFunction r = new IncFunction();
1970 +        final CFException ex = new CFException();
1971 +
1972 +        g.completeExceptionally(ex);
1973 +        f.complete(v1);
1974 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
1975 +
1976 +        // unspecified behavior
1977 +        Integer v;
1978 +        try {
1979 +            assertEquals(h.join(), inc(v1));
1980 +            assertEquals(r.invocationCount, 1);
1981 +        } catch (CompletionException ok) {
1982 +            checkCompletedWithWrappedCFException(h, ex);
1983 +            assertEquals(r.invocationCount, 0);
1984 +        }
1985 +
1986 +        checkCompletedWithWrappedCFException(g, ex);
1987 +        checkCompletedNormally(f, v1);
1988 +        }
1989 +    }
1990 +
1991 +    public void testApplyToEither_exceptionalCompletion4() {
1992 +        for (ExecutionMode m : ExecutionMode.values())
1993 +        for (Integer v1 : new Integer[] { 1, null }) {
1994 +
1995 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
1996 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
1997 +        final IncFunction r = new IncFunction();
1998 +        final CFException ex = new CFException();
1999 +
2000 +        f.completeExceptionally(ex);
2001 +        g.complete(v1);
2002 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2003 +
2004 +        // unspecified behavior
2005 +        Integer v;
2006 +        try {
2007 +            assertEquals(h.join(), inc(v1));
2008 +            assertEquals(r.invocationCount, 1);
2009 +        } catch (CompletionException ok) {
2010 +            checkCompletedWithWrappedCFException(h, ex);
2011 +            assertEquals(r.invocationCount, 0);
2012 +        }
2013 +
2014 +        checkCompletedWithWrappedCFException(f, ex);
2015 +        checkCompletedNormally(g, v1);
2016 +        }
2017 +    }
2018 +
2019 +    /**
2020 +     * applyToEither result completes exceptionally if action does
2021 +     */
2022 +    public void testApplyToEither_actionFailed1() {
2023 +        for (ExecutionMode m : ExecutionMode.values())
2024 +        for (Integer v1 : new Integer[] { 1, null })
2025 +        for (Integer v2 : new Integer[] { 2, null }) {
2026 +
2027 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2028 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2029 +        final FailingFunction r = new FailingFunction();
2030 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2031 +
2032 +        f.complete(v1);
2033 +        checkCompletedWithWrappedCFException(h);
2034 +        g.complete(v2);
2035 +        checkCompletedNormally(f, v1);
2036 +        checkCompletedNormally(g, v2);
2037 +        }
2038 +    }
2039 +
2040 +    public void testApplyToEither_actionFailed2() {
2041 +        for (ExecutionMode m : ExecutionMode.values())
2042 +        for (Integer v1 : new Integer[] { 1, null })
2043 +        for (Integer v2 : new Integer[] { 2, null }) {
2044 +
2045 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2046 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2047 +        final FailingFunction r = new FailingFunction();
2048 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2049 +
2050 +        g.complete(v2);
2051 +        checkCompletedWithWrappedCFException(h);
2052 +        f.complete(v1);
2053 +        checkCompletedNormally(f, v1);
2054 +        checkCompletedNormally(g, v2);
2055 +        }
2056 +    }
2057 +
2058 +    /**
2059 +     * applyToEither result completes exceptionally if either source cancelled
2060 +     */
2061 +    public void testApplyToEither_sourceCancelled1() {
2062 +        for (ExecutionMode m : ExecutionMode.values())
2063 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2064 +        for (Integer v1 : new Integer[] { 1, null }) {
2065 +
2066 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2067 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2068 +        final IncFunction r = new IncFunction();
2069 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2070 +
2071 +        assertTrue(f.cancel(mayInterruptIfRunning));
2072 +        checkCompletedWithWrappedCancellationException(h);
2073 +        g.complete(v1);
2074 +
2075 +        checkCancelled(f);
2076 +        assertEquals(r.invocationCount, 0);
2077 +        checkCompletedNormally(g, v1);
2078 +        checkCompletedWithWrappedCancellationException(h);
2079 +        }
2080 +    }
2081 +
2082 +    public void testApplyToEither_sourceCancelled2() {
2083 +        for (ExecutionMode m : ExecutionMode.values())
2084 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2085 +        for (Integer v1 : new Integer[] { 1, null }) {
2086 +
2087 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2088 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2089 +        final IncFunction r = new IncFunction();
2090 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2091 +
2092 +        assertTrue(g.cancel(mayInterruptIfRunning));
2093 +        checkCompletedWithWrappedCancellationException(h);
2094 +        f.complete(v1);
2095 +
2096 +        checkCancelled(g);
2097 +        assertEquals(r.invocationCount, 0);
2098 +        checkCompletedNormally(f, v1);
2099 +        checkCompletedWithWrappedCancellationException(h);
2100 +        }
2101 +    }
2102 +
2103 +    public void testApplyToEither_sourceCancelled3() {
2104 +        for (ExecutionMode m : ExecutionMode.values())
2105 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2106 +        for (Integer v1 : new Integer[] { 1, null }) {
2107 +
2108 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2109 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2110 +        final IncFunction r = new IncFunction();
2111 +
2112 +        assertTrue(g.cancel(mayInterruptIfRunning));
2113 +        f.complete(v1);
2114 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2115 +
2116 +        // unspecified behavior
2117 +        Integer v;
2118 +        try {
2119 +            assertEquals(h.join(), inc(v1));
2120 +            assertEquals(r.invocationCount, 1);
2121 +        } catch (CompletionException ok) {
2122 +            checkCompletedWithWrappedCancellationException(h);
2123 +            assertEquals(r.invocationCount, 0);
2124 +        }
2125 +
2126 +        checkCancelled(g);
2127 +        checkCompletedNormally(f, v1);
2128 +        }
2129 +    }
2130 +
2131 +    public void testApplyToEither_sourceCancelled4() {
2132 +        for (ExecutionMode m : ExecutionMode.values())
2133 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2134 +        for (Integer v1 : new Integer[] { 1, null }) {
2135 +
2136 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2137 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2138 +        final IncFunction r = new IncFunction();
2139 +
2140 +        assertTrue(f.cancel(mayInterruptIfRunning));
2141 +        g.complete(v1);
2142 +        final CompletableFuture<Integer> h = m.applyToEither(f, g, r);
2143 +
2144 +        // unspecified behavior
2145 +        Integer v;
2146 +        try {
2147 +            assertEquals(h.join(), inc(v1));
2148 +            assertEquals(r.invocationCount, 1);
2149 +        } catch (CompletionException ok) {
2150 +            checkCompletedWithWrappedCancellationException(h);
2151 +            assertEquals(r.invocationCount, 0);
2152 +        }
2153 +
2154 +        checkCancelled(f);
2155 +        checkCompletedNormally(g, v1);
2156 +        }
2157 +    }
2158 +
2159 +    /**
2160 +     * acceptEither result completes normally after normal completion
2161 +     * of either source
2162 +     */
2163 +    public void testAcceptEither_normalCompletion1() {
2164 +        for (ExecutionMode m : ExecutionMode.values())
2165 +        for (Integer v1 : new Integer[] { 1, null })
2166 +        for (Integer v2 : new Integer[] { 2, null }) {
2167 +
2168 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2169 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2170 +        final IncAction r = new IncAction();
2171 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2172 +
2173 +        f.complete(v1);
2174 +        checkCompletedNormally(h, null);
2175 +        assertEquals(r.value, inc(v1));
2176 +        g.complete(v2);
2177 +
2178 +        checkCompletedNormally(f, v1);
2179 +        checkCompletedNormally(g, v2);
2180 +        checkCompletedNormally(h, null);
2181 +        }
2182 +    }
2183 +
2184 +    public void testAcceptEither_normalCompletion2() {
2185 +        for (ExecutionMode m : ExecutionMode.values())
2186 +        for (Integer v1 : new Integer[] { 1, null })
2187 +        for (Integer v2 : new Integer[] { 2, null }) {
2188 +
2189 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2190 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2191 +        final IncAction r = new IncAction();
2192 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2193 +
2194 +        g.complete(v2);
2195 +        checkCompletedNormally(h, null);
2196 +        assertEquals(r.value, inc(v2));
2197 +        f.complete(v1);
2198 +
2199 +        checkCompletedNormally(f, v1);
2200 +        checkCompletedNormally(g, v2);
2201 +        checkCompletedNormally(h, null);
2202 +        }
2203 +    }
2204 +    public void testAcceptEither_normalCompletion3() {
2205 +        for (ExecutionMode m : ExecutionMode.values())
2206 +        for (Integer v1 : new Integer[] { 1, null })
2207 +        for (Integer v2 : new Integer[] { 2, null }) {
2208 +
2209 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2210 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2211 +        final IncAction r = new IncAction();
2212 +
2213 +        f.complete(v1);
2214 +        g.complete(v2);
2215 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2216 +
2217 +        checkCompletedNormally(h, null);
2218 +        checkCompletedNormally(f, v1);
2219 +        checkCompletedNormally(g, v2);
2220 +
2221 +        // unspecified behavior
2222 +        assertTrue(Objects.equals(r.value, inc(v1)) ||
2223 +                   Objects.equals(r.value, inc(v2)));
2224 +        }
2225 +    }
2226 +
2227 +    /**
2228 +     * acceptEither result completes exceptionally after exceptional
2229 +     * completion of either source
2230 +     */
2231 +    public void testAcceptEither_exceptionalCompletion1() {
2232 +        for (ExecutionMode m : ExecutionMode.values())
2233 +        for (Integer v1 : new Integer[] { 1, null }) {
2234 +
2235 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2236 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2237 +        final IncAction r = new IncAction();
2238 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2239 +        final CFException ex = new CFException();
2240 +
2241 +        f.completeExceptionally(ex);
2242 +        checkCompletedWithWrappedCFException(h, ex);
2243 +        g.complete(v1);
2244 +
2245 +        assertEquals(r.invocationCount, 0);
2246 +        checkCompletedNormally(g, v1);
2247 +        checkCompletedWithWrappedCFException(f, ex);
2248 +        checkCompletedWithWrappedCFException(h, ex);
2249 +        }
2250 +    }
2251 +
2252 +    public void testAcceptEither_exceptionalCompletion2() {
2253 +        for (ExecutionMode m : ExecutionMode.values())
2254 +        for (Integer v1 : new Integer[] { 1, null }) {
2255 +
2256 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2257 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2258 +        final IncAction r = new IncAction();
2259 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2260 +        final CFException ex = new CFException();
2261 +
2262 +        g.completeExceptionally(ex);
2263 +        checkCompletedWithWrappedCFException(h, ex);
2264 +        f.complete(v1);
2265 +
2266 +        assertEquals(r.invocationCount, 0);
2267 +        checkCompletedNormally(f, v1);
2268 +        checkCompletedWithWrappedCFException(g, ex);
2269 +        checkCompletedWithWrappedCFException(h, ex);
2270 +        }
2271 +    }
2272 +
2273 +    public void testAcceptEither_exceptionalCompletion3() {
2274 +        for (ExecutionMode m : ExecutionMode.values())
2275 +        for (Integer v1 : new Integer[] { 1, null }) {
2276 +
2277 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2278 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2279 +        final IncAction r = new IncAction();
2280 +        final CFException ex = new CFException();
2281 +
2282 +        g.completeExceptionally(ex);
2283 +        f.complete(v1);
2284 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2285 +
2286 +        // unspecified behavior
2287 +        Integer v;
2288 +        try {
2289 +            assertEquals(h.join(), null);
2290 +            assertEquals(r.invocationCount, 1);
2291 +            assertEquals(inc(v1), r.value);
2292 +        } catch (CompletionException ok) {
2293 +            checkCompletedWithWrappedCFException(h, ex);
2294 +            assertEquals(r.invocationCount, 0);
2295 +        }
2296 +
2297 +        checkCompletedWithWrappedCFException(g, ex);
2298 +        checkCompletedNormally(f, v1);
2299 +        }
2300 +    }
2301 +
2302 +    public void testAcceptEither_exceptionalCompletion4() {
2303 +        for (ExecutionMode m : ExecutionMode.values())
2304 +        for (Integer v1 : new Integer[] { 1, null }) {
2305 +
2306 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2307 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2308 +        final IncAction r = new IncAction();
2309 +        final CFException ex = new CFException();
2310 +
2311 +        f.completeExceptionally(ex);
2312 +        g.complete(v1);
2313 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2314 +
2315 +        // unspecified behavior
2316 +        Integer v;
2317 +        try {
2318 +            assertEquals(h.join(), null);
2319 +            assertEquals(r.invocationCount, 1);
2320 +            assertEquals(inc(v1), r.value);
2321 +        } catch (CompletionException ok) {
2322 +            checkCompletedWithWrappedCFException(h, ex);
2323 +            assertEquals(r.invocationCount, 0);
2324 +        }
2325 +
2326 +        checkCompletedWithWrappedCFException(f, ex);
2327 +        checkCompletedNormally(g, v1);
2328 +        }
2329 +    }
2330 +
2331 +    /**
2332 +     * acceptEither result completes exceptionally if action does
2333 +     */
2334 +    public void testAcceptEither_actionFailed1() {
2335 +        for (ExecutionMode m : ExecutionMode.values())
2336 +        for (Integer v1 : new Integer[] { 1, null })
2337 +        for (Integer v2 : new Integer[] { 2, null }) {
2338 +
2339 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2340 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2341 +        final FailingConsumer r = new FailingConsumer();
2342 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2343 +
2344 +        f.complete(v1);
2345 +        checkCompletedWithWrappedCFException(h);
2346 +        g.complete(v2);
2347 +        checkCompletedNormally(f, v1);
2348 +        checkCompletedNormally(g, v2);
2349 +        }
2350 +    }
2351 +
2352 +    public void testAcceptEither_actionFailed2() {
2353 +        for (ExecutionMode m : ExecutionMode.values())
2354 +        for (Integer v1 : new Integer[] { 1, null })
2355 +        for (Integer v2 : new Integer[] { 2, null }) {
2356 +
2357 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2358 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2359 +        final FailingConsumer r = new FailingConsumer();
2360 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2361 +
2362 +        g.complete(v2);
2363 +        checkCompletedWithWrappedCFException(h);
2364 +        f.complete(v1);
2365 +        checkCompletedNormally(f, v1);
2366 +        checkCompletedNormally(g, v2);
2367 +        }
2368 +    }
2369 +
2370 +    /**
2371 +     * acceptEither result completes exceptionally if either source cancelled
2372 +     */
2373 +    public void testAcceptEither_sourceCancelled1() {
2374 +        for (ExecutionMode m : ExecutionMode.values())
2375 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2376 +        for (Integer v1 : new Integer[] { 1, null }) {
2377 +
2378 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2379 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2380 +        final IncAction r = new IncAction();
2381 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2382 +
2383 +        assertTrue(f.cancel(mayInterruptIfRunning));
2384 +        checkCompletedWithWrappedCancellationException(h);
2385 +        g.complete(v1);
2386 +
2387 +        checkCancelled(f);
2388 +        assertEquals(r.invocationCount, 0);
2389 +        checkCompletedNormally(g, v1);
2390 +        checkCompletedWithWrappedCancellationException(h);
2391 +        }
2392 +    }
2393 +
2394 +    public void testAcceptEither_sourceCancelled2() {
2395 +        for (ExecutionMode m : ExecutionMode.values())
2396 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2397 +        for (Integer v1 : new Integer[] { 1, null }) {
2398 +
2399 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2400 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2401 +        final IncAction r = new IncAction();
2402 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2403 +
2404 +        assertTrue(g.cancel(mayInterruptIfRunning));
2405 +        checkCompletedWithWrappedCancellationException(h);
2406 +        f.complete(v1);
2407 +
2408 +        checkCancelled(g);
2409 +        assertEquals(r.invocationCount, 0);
2410 +        checkCompletedNormally(f, v1);
2411 +        checkCompletedWithWrappedCancellationException(h);
2412 +        }
2413 +    }
2414 +
2415 +    public void testAcceptEither_sourceCancelled3() {
2416 +        for (ExecutionMode m : ExecutionMode.values())
2417 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2418 +        for (Integer v1 : new Integer[] { 1, null }) {
2419 +
2420 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2421 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2422 +        final IncAction r = new IncAction();
2423 +
2424 +        assertTrue(g.cancel(mayInterruptIfRunning));
2425 +        f.complete(v1);
2426 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2427 +
2428 +        // unspecified behavior
2429 +        Integer v;
2430 +        try {
2431 +            assertEquals(h.join(), null);
2432 +            assertEquals(r.invocationCount, 1);
2433 +            assertEquals(inc(v1), r.value);
2434 +        } catch (CompletionException ok) {
2435 +            checkCompletedWithWrappedCancellationException(h);
2436 +            assertEquals(r.invocationCount, 0);
2437 +        }
2438 +
2439 +        checkCancelled(g);
2440 +        checkCompletedNormally(f, v1);
2441 +        }
2442 +    }
2443 +
2444 +    public void testAcceptEither_sourceCancelled4() {
2445 +        for (ExecutionMode m : ExecutionMode.values())
2446 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2447 +        for (Integer v1 : new Integer[] { 1, null }) {
2448 +
2449 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2450 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2451 +        final IncAction r = new IncAction();
2452 +
2453 +        assertTrue(f.cancel(mayInterruptIfRunning));
2454 +        g.complete(v1);
2455 +        final CompletableFuture<Void> h = m.acceptEither(f, g, r);
2456 +
2457 +        // unspecified behavior
2458 +        Integer v;
2459 +        try {
2460 +            assertEquals(h.join(), null);
2461 +            assertEquals(r.invocationCount, 1);
2462 +            assertEquals(inc(v1), r.value);
2463 +        } catch (CompletionException ok) {
2464 +            checkCompletedWithWrappedCancellationException(h);
2465 +            assertEquals(r.invocationCount, 0);
2466 +        }
2467 +
2468 +        checkCancelled(f);
2469 +        checkCompletedNormally(g, v1);
2470 +        }
2471 +    }
2472 +
2473 +    /**
2474 +     * runAfterEither result completes normally after normal completion
2475 +     * of either source
2476 +     */
2477 +    public void testRunAfterEither_normalCompletion1() {
2478 +        for (ExecutionMode m : ExecutionMode.values())
2479 +        for (Integer v1 : new Integer[] { 1, null })
2480 +        for (Integer v2 : new Integer[] { 2, null }) {
2481 +
2482 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2483 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2484 +        final Noop r = new Noop();
2485 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2486 +
2487 +        f.complete(v1);
2488 +        checkCompletedNormally(h, null);
2489 +        assertEquals(r.invocationCount, 1);
2490 +        g.complete(v2);
2491 +
2492 +        checkCompletedNormally(f, v1);
2493 +        checkCompletedNormally(g, v2);
2494 +        checkCompletedNormally(h, null);
2495 +        assertEquals(r.invocationCount, 1);
2496 +        }
2497 +    }
2498 +
2499 +    public void testRunAfterEither_normalCompletion2() {
2500 +        for (ExecutionMode m : ExecutionMode.values())
2501 +        for (Integer v1 : new Integer[] { 1, null })
2502 +        for (Integer v2 : new Integer[] { 2, null }) {
2503 +
2504 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2505 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2506 +        final Noop r = new Noop();
2507 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2508 +
2509 +        g.complete(v2);
2510 +        checkCompletedNormally(h, null);
2511 +        assertEquals(r.invocationCount, 1);
2512 +        f.complete(v1);
2513 +
2514 +        checkCompletedNormally(f, v1);
2515 +        checkCompletedNormally(g, v2);
2516 +        checkCompletedNormally(h, null);
2517 +        assertEquals(r.invocationCount, 1);
2518 +        }
2519 +    }
2520 +    public void testRunAfterEither_normalCompletion3() {
2521 +        for (ExecutionMode m : ExecutionMode.values())
2522 +        for (Integer v1 : new Integer[] { 1, null })
2523 +        for (Integer v2 : new Integer[] { 2, null }) {
2524 +
2525 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2526 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2527 +        final Noop r = new Noop();
2528 +
2529 +        f.complete(v1);
2530 +        g.complete(v2);
2531 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2532 +
2533 +        checkCompletedNormally(h, null);
2534 +        checkCompletedNormally(f, v1);
2535 +        checkCompletedNormally(g, v2);
2536 +        assertEquals(r.invocationCount, 1);
2537 +        }
2538 +    }
2539 +
2540 +    /**
2541 +     * runAfterEither result completes exceptionally after exceptional
2542 +     * completion of either source
2543 +     */
2544 +    public void testRunAfterEither_exceptionalCompletion1() {
2545 +        for (ExecutionMode m : ExecutionMode.values())
2546 +        for (Integer v1 : new Integer[] { 1, null }) {
2547 +
2548 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2549 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2550 +        final Noop r = new Noop();
2551 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2552 +        final CFException ex = new CFException();
2553 +
2554 +        f.completeExceptionally(ex);
2555 +        checkCompletedWithWrappedCFException(h, ex);
2556 +        g.complete(v1);
2557 +
2558 +        assertEquals(r.invocationCount, 0);
2559 +        checkCompletedNormally(g, v1);
2560 +        checkCompletedWithWrappedCFException(f, ex);
2561 +        checkCompletedWithWrappedCFException(h, ex);
2562 +        }
2563 +    }
2564 +
2565 +    public void testRunAfterEither_exceptionalCompletion2() {
2566 +        for (ExecutionMode m : ExecutionMode.values())
2567 +        for (Integer v1 : new Integer[] { 1, null }) {
2568 +
2569 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2570 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2571 +        final Noop r = new Noop();
2572 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2573 +        final CFException ex = new CFException();
2574 +
2575 +        g.completeExceptionally(ex);
2576 +        checkCompletedWithWrappedCFException(h, ex);
2577 +        f.complete(v1);
2578 +
2579 +        assertEquals(r.invocationCount, 0);
2580 +        checkCompletedNormally(f, v1);
2581 +        checkCompletedWithWrappedCFException(g, ex);
2582 +        checkCompletedWithWrappedCFException(h, ex);
2583 +        }
2584 +    }
2585 +
2586 +    public void testRunAfterEither_exceptionalCompletion3() {
2587 +        for (ExecutionMode m : ExecutionMode.values())
2588 +        for (Integer v1 : new Integer[] { 1, null }) {
2589 +
2590 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2591 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2592 +        final Noop r = new Noop();
2593 +        final CFException ex = new CFException();
2594 +
2595 +        g.completeExceptionally(ex);
2596 +        f.complete(v1);
2597 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2598 +
2599 +        // unspecified behavior
2600 +        Integer v;
2601 +        try {
2602 +            assertEquals(h.join(), null);
2603 +            assertEquals(r.invocationCount, 1);
2604 +        } catch (CompletionException ok) {
2605 +            checkCompletedWithWrappedCFException(h, ex);
2606 +            assertEquals(r.invocationCount, 0);
2607 +        }
2608 +
2609 +        checkCompletedWithWrappedCFException(g, ex);
2610 +        checkCompletedNormally(f, v1);
2611 +        }
2612 +    }
2613 +
2614 +    public void testRunAfterEither_exceptionalCompletion4() {
2615 +        for (ExecutionMode m : ExecutionMode.values())
2616 +        for (Integer v1 : new Integer[] { 1, null }) {
2617 +
2618 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2619 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2620 +        final Noop r = new Noop();
2621 +        final CFException ex = new CFException();
2622 +
2623 +        f.completeExceptionally(ex);
2624 +        g.complete(v1);
2625 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2626 +
2627 +        // unspecified behavior
2628 +        Integer v;
2629 +        try {
2630 +            assertEquals(h.join(), null);
2631 +            assertEquals(r.invocationCount, 1);
2632 +        } catch (CompletionException ok) {
2633 +            checkCompletedWithWrappedCFException(h, ex);
2634 +            assertEquals(r.invocationCount, 0);
2635 +        }
2636 +
2637 +        checkCompletedWithWrappedCFException(f, ex);
2638 +        checkCompletedNormally(g, v1);
2639 +        }
2640 +    }
2641 +
2642 +    /**
2643 +     * runAfterEither result completes exceptionally if action does
2644 +     */
2645 +    public void testRunAfterEither_actionFailed1() {
2646 +        for (ExecutionMode m : ExecutionMode.values())
2647 +        for (Integer v1 : new Integer[] { 1, null })
2648 +        for (Integer v2 : new Integer[] { 2, null }) {
2649 +
2650 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2651 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2652 +        final FailingNoop r = new FailingNoop();
2653 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2654 +
2655 +        f.complete(v1);
2656 +        checkCompletedWithWrappedCFException(h);
2657 +        g.complete(v2);
2658 +        checkCompletedNormally(f, v1);
2659 +        checkCompletedNormally(g, v2);
2660 +        }
2661 +    }
2662 +
2663 +    public void testRunAfterEither_actionFailed2() {
2664 +        for (ExecutionMode m : ExecutionMode.values())
2665 +        for (Integer v1 : new Integer[] { 1, null })
2666 +        for (Integer v2 : new Integer[] { 2, null }) {
2667 +
2668 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2669 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2670 +        final FailingNoop r = new FailingNoop();
2671 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2672 +
2673 +        g.complete(v2);
2674 +        checkCompletedWithWrappedCFException(h);
2675 +        f.complete(v1);
2676 +        checkCompletedNormally(f, v1);
2677 +        checkCompletedNormally(g, v2);
2678 +        }
2679 +    }
2680 +
2681 +    /**
2682 +     * runAfterEither result completes exceptionally if either source cancelled
2683 +     */
2684 +    public void testRunAfterEither_sourceCancelled1() {
2685 +        for (ExecutionMode m : ExecutionMode.values())
2686 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2687 +        for (Integer v1 : new Integer[] { 1, null }) {
2688 +
2689 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2690 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2691 +        final Noop r = new Noop();
2692 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2693 +
2694 +        assertTrue(f.cancel(mayInterruptIfRunning));
2695 +        checkCompletedWithWrappedCancellationException(h);
2696 +        g.complete(v1);
2697 +
2698 +        checkCancelled(f);
2699 +        assertEquals(r.invocationCount, 0);
2700 +        checkCompletedNormally(g, v1);
2701 +        checkCompletedWithWrappedCancellationException(h);
2702 +        }
2703 +    }
2704 +
2705 +    public void testRunAfterEither_sourceCancelled2() {
2706 +        for (ExecutionMode m : ExecutionMode.values())
2707 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2708 +        for (Integer v1 : new Integer[] { 1, null }) {
2709 +
2710 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2711 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2712 +        final Noop r = new Noop();
2713 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2714 +
2715 +        assertTrue(g.cancel(mayInterruptIfRunning));
2716 +        checkCompletedWithWrappedCancellationException(h);
2717 +        f.complete(v1);
2718 +
2719 +        checkCancelled(g);
2720 +        assertEquals(r.invocationCount, 0);
2721 +        checkCompletedNormally(f, v1);
2722 +        checkCompletedWithWrappedCancellationException(h);
2723 +        }
2724 +    }
2725 +
2726 +    public void testRunAfterEither_sourceCancelled3() {
2727 +        for (ExecutionMode m : ExecutionMode.values())
2728 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2729 +        for (Integer v1 : new Integer[] { 1, null }) {
2730 +
2731 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2732 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2733 +        final Noop r = new Noop();
2734 +
2735 +        assertTrue(g.cancel(mayInterruptIfRunning));
2736 +        f.complete(v1);
2737 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2738 +
2739 +        // unspecified behavior
2740 +        Integer v;
2741 +        try {
2742 +            assertEquals(h.join(), null);
2743 +            assertEquals(r.invocationCount, 1);
2744 +        } catch (CompletionException ok) {
2745 +            checkCompletedWithWrappedCancellationException(h);
2746 +            assertEquals(r.invocationCount, 0);
2747 +        }
2748 +
2749 +        checkCancelled(g);
2750 +        checkCompletedNormally(f, v1);
2751 +        }
2752 +    }
2753 +
2754 +    public void testRunAfterEither_sourceCancelled4() {
2755 +        for (ExecutionMode m : ExecutionMode.values())
2756 +        for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2757 +        for (Integer v1 : new Integer[] { 1, null }) {
2758 +
2759 +        final CompletableFuture<Integer> f = new CompletableFuture<>();
2760 +        final CompletableFuture<Integer> g = new CompletableFuture<>();
2761 +        final Noop r = new Noop();
2762 +
2763 +        assertTrue(f.cancel(mayInterruptIfRunning));
2764 +        g.complete(v1);
2765 +        final CompletableFuture<Void> h = m.runAfterEither(f, g, r);
2766 +
2767 +        // unspecified behavior
2768 +        Integer v;
2769 +        try {
2770 +            assertEquals(h.join(), null);
2771 +            assertEquals(r.invocationCount, 1);
2772 +        } catch (CompletionException ok) {
2773 +            checkCompletedWithWrappedCancellationException(h);
2774 +            assertEquals(r.invocationCount, 0);
2775 +        }
2776 +
2777 +        checkCancelled(f);
2778 +        checkCompletedNormally(g, v1);
2779 +        }
2780 +    }
2781 +
2782 +    /**
2783 +     * thenCompose result completes normally after normal completion of source
2784 +     */
2785 +    public void testThenCompose() {
2786 +        CompletableFuture<Integer> f, g;
2787 +        CompletableFutureInc r;
2788 +
2789 +        f = new CompletableFuture<>();
2790 +        g = f.thenCompose(r = new CompletableFutureInc());
2791 +        f.complete(one);
2792 +        checkCompletedNormally(g, two);
2793 +        assertTrue(r.ran);
2794 +
2795 +        f = new CompletableFuture<>();
2796 +        f.complete(one);
2797 +        g = f.thenCompose(r = new CompletableFutureInc());
2798 +        checkCompletedNormally(g, two);
2799 +        assertTrue(r.ran);
2800 +    }
2801 +
2802 +    /**
2803 +     * thenCompose result completes exceptionally after exceptional
2804 +     * completion of source
2805 +     */
2806 +    public void testThenCompose2() {
2807 +        CompletableFuture<Integer> f, g;
2808 +        CompletableFutureInc r;
2809 +
2810 +        f = new CompletableFuture<>();
2811 +        g = f.thenCompose(r = new CompletableFutureInc());
2812 +        f.completeExceptionally(new CFException());
2813 +        checkCompletedWithWrappedCFException(g);
2814 +
2815 +        f = new CompletableFuture<>();
2816 +        f.completeExceptionally(new CFException());
2817 +        g = f.thenCompose(r = new CompletableFutureInc());
2818 +        checkCompletedWithWrappedCFException(g);
2819 +    }
2820 +
2821 +    /**
2822 +     * thenCompose result completes exceptionally if action does
2823 +     */
2824 +    public void testThenCompose3() {
2825 +        CompletableFuture<Integer> f, g;
2826 +        FailingCompletableFutureFunction r;
2827 +
2828 +        f = new CompletableFuture<>();
2829 +        g = f.thenCompose(r = new FailingCompletableFutureFunction());
2830 +        f.complete(one);
2831 +        checkCompletedWithWrappedCFException(g);
2832 +
2833 +        f = new CompletableFuture<>();
2834 +        f.complete(one);
2835 +        g = f.thenCompose(r = new FailingCompletableFutureFunction());
2836 +        checkCompletedWithWrappedCFException(g);
2837 +    }
2838 +
2839 +    /**
2840 +     * thenCompose result completes exceptionally if source cancelled
2841 +     */
2842 +    public void testThenCompose4() {
2843 +        CompletableFuture<Integer> f, g;
2844 +        CompletableFutureInc r;
2845 +
2846 +        f = new CompletableFuture<>();
2847 +        g = f.thenCompose(r = new CompletableFutureInc());
2848 +        assertTrue(f.cancel(true));
2849 +        checkCompletedWithWrappedCancellationException(g);
2850 +
2851 +        f = new CompletableFuture<>();
2852 +        assertTrue(f.cancel(true));
2853 +        g = f.thenCompose(r = new CompletableFutureInc());
2854 +        checkCompletedWithWrappedCancellationException(g);
2855 +    }
2856 +
2857 +    // asyncs
2858 +
2859 +    /**
2860 +     * thenRunAsync result completes normally after normal completion of source
2861 +     */
2862 +    public void testThenRunAsync() {
2863 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2864 +        Noop r = new Noop();
2865 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2866 +        f.complete(null);
2867 +        checkCompletedNormally(g, null);
2868 +
2869 +        // reordered version
2870 +        f = new CompletableFuture<>();
2871 +        f.complete(null);
2872 +        r = new Noop();
2873 +        g = f.thenRunAsync(r);
2874 +        checkCompletedNormally(g, null);
2875 +    }
2876 +
2877 +    /**
2878 +     * thenRunAsync result completes exceptionally after exceptional
2879 +     * completion of source
2880 +     */
2881 +    public void testThenRunAsync2() {
2882 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2883 +        Noop r = new Noop();
2884 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2885 +        f.completeExceptionally(new CFException());
2886 +        try {
2887 +            g.join();
2888 +            shouldThrow();
2889 +        } catch (CompletionException success) {}
2890 +        checkCompletedWithWrappedCFException(g);
2891 +    }
2892 +
2893 +    /**
2894 +     * thenRunAsync result completes exceptionally if action does
2895 +     */
2896 +    public void testThenRunAsync3() {
2897 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2898 +        FailingNoop r = new FailingNoop();
2899 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2900 +        f.complete(null);
2901 +        checkCompletedWithWrappedCFException(g);
2902 +    }
2903 +
2904 +    /**
2905 +     * thenRunAsync result completes exceptionally if source cancelled
2906 +     */
2907 +    public void testThenRunAsync4() {
2908 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2909 +        Noop r = new Noop();
2910 +        CompletableFuture<Void> g = f.thenRunAsync(r);
2911 +        assertTrue(f.cancel(true));
2912 +        checkCompletedWithWrappedCancellationException(g);
2913 +    }
2914 +
2915 +    /**
2916 +     * thenApplyAsync result completes normally after normal completion of source
2917 +     */
2918 +    public void testThenApplyAsync() {
2919 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2920 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2921 +        f.complete(one);
2922 +        checkCompletedNormally(g, two);
2923 +    }
2924 +
2925 +    /**
2926 +     * thenApplyAsync result completes exceptionally after exceptional
2927 +     * completion of source
2928 +     */
2929 +    public void testThenApplyAsync2() {
2930 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2931 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2932 +        f.completeExceptionally(new CFException());
2933 +        checkCompletedWithWrappedCFException(g);
2934 +    }
2935 +
2936 +    /**
2937 +     * thenApplyAsync result completes exceptionally if action does
2938 +     */
2939 +    public void testThenApplyAsync3() {
2940 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2941 +        FailingFunction r = new FailingFunction();
2942 +        CompletableFuture<Integer> g = f.thenApplyAsync(r);
2943 +        f.complete(null);
2944 +        checkCompletedWithWrappedCFException(g);
2945 +    }
2946 +
2947 +    /**
2948 +     * thenApplyAsync result completes exceptionally if source cancelled
2949 +     */
2950 +    public void testThenApplyAsync4() {
2951 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2952 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2953 +        assertTrue(f.cancel(true));
2954 +        checkCompletedWithWrappedCancellationException(g);
2955 +    }
2956 +
2957 +    /**
2958 +     * thenAcceptAsync result completes normally after normal
2959 +     * completion of source
2960 +     */
2961 +    public void testThenAcceptAsync() {
2962 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2963 +        IncAction r = new IncAction();
2964 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2965 +        f.complete(one);
2966 +        checkCompletedNormally(g, null);
2967 +        assertEquals(r.value, (Integer) 2);
2968 +    }
2969 +
2970 +    /**
2971 +     * thenAcceptAsync result completes exceptionally after exceptional
2972 +     * completion of source
2973 +     */
2974 +    public void testThenAcceptAsync2() {
2975 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2976 +        IncAction r = new IncAction();
2977 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2978 +        f.completeExceptionally(new CFException());
2979 +        checkCompletedWithWrappedCFException(g);
2980 +    }
2981 +
2982 +    /**
2983 +     * thenAcceptAsync result completes exceptionally if action does
2984 +     */
2985 +    public void testThenAcceptAsync3() {
2986 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2987 +        FailingConsumer r = new FailingConsumer();
2988 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
2989 +        f.complete(null);
2990 +        checkCompletedWithWrappedCFException(g);
2991 +    }
2992 +
2993 +    /**
2994 +     * thenAcceptAsync result completes exceptionally if source cancelled
2995 +     */
2996 +    public void testThenAcceptAsync4() {
2997 +        CompletableFuture<Integer> f = new CompletableFuture<>();
2998 +        IncAction r = new IncAction();
2999 +        CompletableFuture<Void> g = f.thenAcceptAsync(r);
3000 +        assertTrue(f.cancel(true));
3001 +        checkCompletedWithWrappedCancellationException(g);
3002 +    }
3003 +
3004 +    /**
3005 +     * thenComposeAsync result completes normally after normal
3006 +     * completion of source
3007 +     */
3008 +    public void testThenComposeAsync() {
3009 +        CompletableFuture<Integer> f, g;
3010 +        CompletableFutureInc r;
3011 +
3012 +        f = new CompletableFuture<>();
3013 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
3014 +        f.complete(one);
3015 +        checkCompletedNormally(g, two);
3016 +
3017 +        f = new CompletableFuture<>();
3018 +        f.complete(one);
3019 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
3020 +        checkCompletedNormally(g, two);
3021 +    }
3022 +
3023 +    /**
3024 +     * thenComposeAsync result completes exceptionally after
3025 +     * exceptional completion of source
3026 +     */
3027 +    public void testThenComposeAsync2() {
3028 +        CompletableFuture<Integer> f, g;
3029 +        CompletableFutureInc r;
3030 +
3031 +        f = new CompletableFuture<>();
3032 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
3033 +        f.completeExceptionally(new CFException());
3034 +        checkCompletedWithWrappedCFException(g);
3035 +        assertFalse(r.ran);
3036 +
3037 +        f = new CompletableFuture<>();
3038 +        f.completeExceptionally(new CFException());
3039 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
3040 +        checkCompletedWithWrappedCFException(g);
3041 +        assertFalse(r.ran);
3042 +    }
3043 +
3044 +    /**
3045 +     * thenComposeAsync result completes exceptionally if action does
3046 +     */
3047 +    public void testThenComposeAsync3() {
3048 +        CompletableFuture<Integer> f, g;
3049 +        FailingCompletableFutureFunction r;
3050 +
3051 +        f = new CompletableFuture<>();
3052 +        g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
3053 +        f.complete(one);
3054 +        checkCompletedWithWrappedCFException(g);
3055 +
3056 +        f = new CompletableFuture<>();
3057 +        f.complete(one);
3058 +        g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
3059 +        checkCompletedWithWrappedCFException(g);
3060 +    }
3061 +
3062 +    /**
3063 +     * thenComposeAsync result completes exceptionally if source cancelled
3064 +     */
3065 +    public void testThenComposeAsync4() {
3066 +        CompletableFuture<Integer> f, g;
3067 +        CompletableFutureInc r;
3068 +
3069 +        f = new CompletableFuture<>();
3070 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
3071 +        assertTrue(f.cancel(true));
3072 +        checkCompletedWithWrappedCancellationException(g);
3073 +
3074 +        f = new CompletableFuture<>();
3075 +        assertTrue(f.cancel(true));
3076 +        g = f.thenComposeAsync(r = new CompletableFutureInc());
3077 +        checkCompletedWithWrappedCancellationException(g);
3078 +    }
3079 +
3080 +    // async with explicit executors
3081 +
3082 +    /**
3083 +     * thenRunAsync result completes normally after normal completion of source
3084 +     */
3085 +    public void testThenRunAsyncE() {
3086 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3087 +        Noop r = new Noop();
3088 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3089 +        f.complete(null);
3090 +        checkCompletedNormally(g, null);
3091 +
3092 +        // reordered version
3093 +        f = new CompletableFuture<>();
3094 +        f.complete(null);
3095 +        r = new Noop();
3096 +        g = f.thenRunAsync(r, new ThreadExecutor());
3097 +        checkCompletedNormally(g, null);
3098 +    }
3099 +
3100 +    /**
3101 +     * thenRunAsync result completes exceptionally after exceptional
3102 +     * completion of source
3103 +     */
3104 +    public void testThenRunAsync2E() {
3105 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3106 +        Noop r = new Noop();
3107 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3108 +        f.completeExceptionally(new CFException());
3109 +        try {
3110 +            g.join();
3111 +            shouldThrow();
3112 +        } catch (CompletionException success) {}
3113 +        checkCompletedWithWrappedCFException(g);
3114 +    }
3115 +
3116 +    /**
3117 +     * thenRunAsync result completes exceptionally if action does
3118 +     */
3119 +    public void testThenRunAsync3E() {
3120 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3121 +        FailingNoop r = new FailingNoop();
3122 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3123 +        f.complete(null);
3124 +        checkCompletedWithWrappedCFException(g);
3125 +    }
3126 +
3127 +    /**
3128 +     * thenRunAsync result completes exceptionally if source cancelled
3129 +     */
3130 +    public void testThenRunAsync4E() {
3131 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3132 +        Noop r = new Noop();
3133 +        CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3134 +        assertTrue(f.cancel(true));
3135 +        checkCompletedWithWrappedCancellationException(g);
3136 +    }
3137 +
3138 +    /**
3139 +     * thenApplyAsync result completes normally after normal completion of source
3140 +     */
3141 +    public void testThenApplyAsyncE() {
3142 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3143 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3144 +        f.complete(one);
3145 +        checkCompletedNormally(g, two);
3146 +    }
3147 +
3148 +    /**
3149 +     * thenApplyAsync result completes exceptionally after exceptional
3150 +     * completion of source
3151 +     */
3152 +    public void testThenApplyAsync2E() {
3153 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3154 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3155 +        f.completeExceptionally(new CFException());
3156 +        checkCompletedWithWrappedCFException(g);
3157 +    }
3158 +
3159 +    /**
3160 +     * thenApplyAsync result completes exceptionally if action does
3161 +     */
3162 +    public void testThenApplyAsync3E() {
3163 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3164 +        FailingFunction r = new FailingFunction();
3165 +        CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3166 +        f.complete(null);
3167 +        checkCompletedWithWrappedCFException(g);
3168 +    }
3169 +
3170 +    /**
3171 +     * thenApplyAsync result completes exceptionally if source cancelled
3172 +     */
3173 +    public void testThenApplyAsync4E() {
3174 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3175 +        CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3176 +        assertTrue(f.cancel(true));
3177 +        checkCompletedWithWrappedCancellationException(g);
3178 +    }
3179 +
3180 +    /**
3181 +     * thenAcceptAsync result completes normally after normal
3182 +     * completion of source
3183 +     */
3184 +    public void testThenAcceptAsyncE() {
3185 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3186 +        IncAction r = new IncAction();
3187 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3188 +        f.complete(one);
3189 +        checkCompletedNormally(g, null);
3190 +        assertEquals(r.value, (Integer) 2);
3191 +    }
3192 +
3193 +    /**
3194 +     * thenAcceptAsync result completes exceptionally after exceptional
3195 +     * completion of source
3196 +     */
3197 +    public void testThenAcceptAsync2E() {
3198 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3199 +        IncAction r = new IncAction();
3200 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3201 +        f.completeExceptionally(new CFException());
3202 +        checkCompletedWithWrappedCFException(g);
3203 +    }
3204 +
3205 +    /**
3206 +     * thenAcceptAsync result completes exceptionally if action does
3207 +     */
3208 +    public void testThenAcceptAsync3E() {
3209 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3210 +        FailingConsumer r = new FailingConsumer();
3211 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3212 +        f.complete(null);
3213 +        checkCompletedWithWrappedCFException(g);
3214 +    }
3215 +
3216 +    /**
3217 +     * thenAcceptAsync result completes exceptionally if source cancelled
3218 +     */
3219 +    public void testThenAcceptAsync4E() {
3220 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3221 +        IncAction r = new IncAction();
3222 +        CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3223 +        assertTrue(f.cancel(true));
3224 +        checkCompletedWithWrappedCancellationException(g);
3225 +    }
3226 +
3227 +    /**
3228 +     * thenComposeAsync result completes normally after normal
3229 +     * completion of source
3230 +     */
3231 +    public void testThenComposeAsyncE() {
3232 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3233 +        CompletableFutureInc r = new CompletableFutureInc();
3234 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3235 +        f.complete(one);
3236 +        checkCompletedNormally(g, two);
3237 +    }
3238 +
3239 +    /**
3240 +     * thenComposeAsync result completes exceptionally after
3241 +     * exceptional completion of source
3242 +     */
3243 +    public void testThenComposeAsync2E() {
3244 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3245 +        CompletableFutureInc r = new CompletableFutureInc();
3246 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3247 +        f.completeExceptionally(new CFException());
3248 +        checkCompletedWithWrappedCFException(g);
3249 +    }
3250 +
3251 +    /**
3252 +     * thenComposeAsync result completes exceptionally if action does
3253 +     */
3254 +    public void testThenComposeAsync3E() {
3255 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3256 +        FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3257 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3258 +        f.complete(one);
3259 +        checkCompletedWithWrappedCFException(g);
3260 +    }
3261 +
3262 +    /**
3263 +     * thenComposeAsync result completes exceptionally if source cancelled
3264 +     */
3265 +    public void testThenComposeAsync4E() {
3266 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3267 +        CompletableFutureInc r = new CompletableFutureInc();
3268 +        CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3269 +        assertTrue(f.cancel(true));
3270 +        checkCompletedWithWrappedCancellationException(g);
3271 +    }
3272 +
3273 +    // other static methods
3274 +
3275 +    /**
3276 +     * allOf(no component futures) returns a future completed normally
3277 +     * with the value null
3278 +     */
3279 +    public void testAllOf_empty() throws Exception {
3280 +        CompletableFuture<Void> f = CompletableFuture.allOf();
3281 +        checkCompletedNormally(f, null);
3282 +    }
3283 +
3284 +    /**
3285 +     * allOf returns a future completed normally with the value null
3286 +     * when all components complete normally
3287 +     */
3288 +    public void testAllOf_normal() throws Exception {
3289 +        for (int k = 1; k < 20; ++k) {
3290 +            CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3291 +            for (int i = 0; i < k; ++i)
3292 +                fs[i] = new CompletableFuture<>();
3293 +            CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3294 +            for (int i = 0; i < k; ++i) {
3295 +                checkIncomplete(f);
3296 +                checkIncomplete(CompletableFuture.allOf(fs));
3297 +                fs[i].complete(one);
3298 +            }
3299 +            checkCompletedNormally(f, null);
3300 +            checkCompletedNormally(CompletableFuture.allOf(fs), null);
3301 +        }
3302 +    }
3303 +
3304 +    /**
3305 +     * anyOf(no component futures) returns an incomplete future
3306 +     */
3307 +    public void testAnyOf_empty() throws Exception {
3308 +        CompletableFuture<Object> f = CompletableFuture.anyOf();
3309 +        checkIncomplete(f);
3310 +    }
3311 +
3312 +    /**
3313 +     * anyOf returns a future completed normally with a value when
3314 +     * a component future does
3315 +     */
3316 +    public void testAnyOf_normal() throws Exception {
3317 +        for (int k = 0; k < 10; ++k) {
3318 +            CompletableFuture[] fs = new CompletableFuture[k];
3319 +            for (int i = 0; i < k; ++i)
3320 +                fs[i] = new CompletableFuture<>();
3321 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3322 +            checkIncomplete(f);
3323 +            for (int i = 0; i < k; ++i) {
3324 +                fs[i].complete(one);
3325 +                checkCompletedNormally(f, one);
3326 +                checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3327 +            }
3328 +        }
3329 +    }
3330 +
3331 +    /**
3332 +     * anyOf result completes exceptionally when any component does.
3333 +     */
3334 +    public void testAnyOf_exceptional() throws Exception {
3335 +        for (int k = 0; k < 10; ++k) {
3336 +            CompletableFuture[] fs = new CompletableFuture[k];
3337 +            for (int i = 0; i < k; ++i)
3338 +                fs[i] = new CompletableFuture<>();
3339 +            CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3340 +            checkIncomplete(f);
3341 +            for (int i = 0; i < k; ++i) {
3342 +                fs[i].completeExceptionally(new CFException());
3343 +                checkCompletedWithWrappedCFException(f);
3344 +                checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3345 +            }
3346 +        }
3347 +    }
3348 +
3349 +    /**
3350 +     * Completion methods throw NullPointerException with null arguments
3351 +     */
3352 +    public void testNPE() {
3353 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3354 +        CompletableFuture<Integer> g = new CompletableFuture<>();
3355 +        CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3356 +        CompletableFuture<?> h;
3357 +        ThreadExecutor exec = new ThreadExecutor();
3358 +
3359 +        Runnable[] throwingActions = {
3360 +            () -> CompletableFuture.supplyAsync(null),
3361 +            () -> CompletableFuture.supplyAsync(null, exec),
3362 +            () -> CompletableFuture.supplyAsync(supplyOne, null),
3363 +
3364 +            () -> CompletableFuture.runAsync(null),
3365 +            () -> CompletableFuture.runAsync(null, exec),
3366 +            () -> CompletableFuture.runAsync(() -> {}, null),
3367 +
3368 +            () -> f.completeExceptionally(null),
3369 +
3370 +            () -> f.thenApply(null),
3371 +            () -> f.thenApplyAsync(null),
3372 +            () -> f.thenApplyAsync((x) -> x, null),
3373 +            () -> f.thenApplyAsync(null, exec),
3374 +
3375 +            () -> f.thenAccept(null),
3376 +            () -> f.thenAcceptAsync(null),
3377 +            () -> f.thenAcceptAsync((x) -> {} , null),
3378 +            () -> f.thenAcceptAsync(null, exec),
3379 +
3380 +            () -> f.thenRun(null),
3381 +            () -> f.thenRunAsync(null),
3382 +            () -> f.thenRunAsync(() -> {} , null),
3383 +            () -> f.thenRunAsync(null, exec),
3384 +
3385 +            () -> f.thenCombine(g, null),
3386 +            () -> f.thenCombineAsync(g, null),
3387 +            () -> f.thenCombineAsync(g, null, exec),
3388 +            () -> f.thenCombine(nullFuture, (x, y) -> x),
3389 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3390 +            () -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3391 +            () -> f.thenCombineAsync(g, (x, y) -> x, null),
3392 +
3393 +            () -> f.thenAcceptBoth(g, null),
3394 +            () -> f.thenAcceptBothAsync(g, null),
3395 +            () -> f.thenAcceptBothAsync(g, null, exec),
3396 +            () -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3397 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3398 +            () -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3399 +            () -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3400 +
3401 +            () -> f.runAfterBoth(g, null),
3402 +            () -> f.runAfterBothAsync(g, null),
3403 +            () -> f.runAfterBothAsync(g, null, exec),
3404 +            () -> f.runAfterBoth(nullFuture, () -> {}),
3405 +            () -> f.runAfterBothAsync(nullFuture, () -> {}),
3406 +            () -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3407 +            () -> f.runAfterBothAsync(g, () -> {}, null),
3408 +
3409 +            () -> f.applyToEither(g, null),
3410 +            () -> f.applyToEitherAsync(g, null),
3411 +            () -> f.applyToEitherAsync(g, null, exec),
3412 +            () -> f.applyToEither(nullFuture, (x) -> x),
3413 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x),
3414 +            () -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3415 +            () -> f.applyToEitherAsync(g, (x) -> x, null),
3416 +
3417 +            () -> f.acceptEither(g, null),
3418 +            () -> f.acceptEitherAsync(g, null),
3419 +            () -> f.acceptEitherAsync(g, null, exec),
3420 +            () -> f.acceptEither(nullFuture, (x) -> {}),
3421 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3422 +            () -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3423 +            () -> f.acceptEitherAsync(g, (x) -> {}, null),
3424 +
3425 +            () -> f.runAfterEither(g, null),
3426 +            () -> f.runAfterEitherAsync(g, null),
3427 +            () -> f.runAfterEitherAsync(g, null, exec),
3428 +            () -> f.runAfterEither(nullFuture, () -> {}),
3429 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}),
3430 +            () -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3431 +            () -> f.runAfterEitherAsync(g, () -> {}, null),
3432 +
3433 +            () -> f.thenCompose(null),
3434 +            () -> f.thenComposeAsync(null),
3435 +            () -> f.thenComposeAsync(new CompletableFutureInc(), null),
3436 +            () -> f.thenComposeAsync(null, exec),
3437 +
3438 +            () -> f.exceptionally(null),
3439 +
3440 +            () -> f.handle(null),
3441 +
3442 +            () -> CompletableFuture.allOf((CompletableFuture<?>)null),
3443 +            () -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3444 +            () -> CompletableFuture.allOf(f, null),
3445 +            () -> CompletableFuture.allOf(null, f),
3446 +
3447 +            () -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3448 +            () -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3449 +            () -> CompletableFuture.anyOf(f, null),
3450 +            () -> CompletableFuture.anyOf(null, f),
3451 +
3452 +            () -> f.obtrudeException(null),
3453 +        };
3454 +
3455 +        assertThrows(NullPointerException.class, throwingActions);
3456 +        assertEquals(0, exec.count.get());
3457 +    }
3458 +
3459 +    /**
3460 +     * toCompletableFuture returns this CompletableFuture.
3461 +     */
3462 +    public void testToCompletableFuture() {
3463 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3464 +        assertSame(f, f.toCompletableFuture());
3465 +    }
3466 +
3467 +    /**
3468 +     * whenComplete action executes on normal completion, propagating
3469 +     * source result.
3470 +     */
3471 +    public void testWhenComplete1() {
3472 +        final AtomicInteger a = new AtomicInteger();
3473 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3474 +        CompletableFuture<Integer> g =
3475 +            f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3476 +        f.complete(three);
3477 +        checkCompletedNormally(f, three);
3478 +        checkCompletedNormally(g, three);
3479 +        assertEquals(a.get(), 1);
3480 +    }
3481 +
3482 +    /**
3483 +     * whenComplete action executes on exceptional completion, propagating
3484 +     * source result.
3485 +     */
3486 +    public void testWhenComplete2() {
3487 +        final AtomicInteger a = new AtomicInteger();
3488 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3489 +        CompletableFuture<Integer> g =
3490 +            f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3491 +        f.completeExceptionally(new CFException());
3492 +        assertTrue(f.isCompletedExceptionally());
3493 +        assertTrue(g.isCompletedExceptionally());
3494 +        assertEquals(a.get(), 1);
3495 +    }
3496 +
3497 +    /**
3498 +     * If a whenComplete action throws an exception when triggered by
3499 +     * a normal completion, it completes exceptionally
3500 +     */
3501 +    public void testWhenComplete3() {
3502 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3503 +        CompletableFuture<Integer> g =
3504 +            f.whenComplete((Integer x, Throwable t) ->
3505 +                           { throw new CFException(); } );
3506 +        f.complete(three);
3507 +        checkCompletedNormally(f, three);
3508 +        assertTrue(g.isCompletedExceptionally());
3509 +        checkCompletedWithWrappedCFException(g);
3510 +    }
3511 +
3512 +    /**
3513 +     * whenCompleteAsync action executes on normal completion, propagating
3514 +     * source result.
3515 +     */
3516 +    public void testWhenCompleteAsync1() {
3517 +        final AtomicInteger a = new AtomicInteger();
3518 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3519 +        CompletableFuture<Integer> g =
3520 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3521 +        f.complete(three);
3522 +        checkCompletedNormally(f, three);
3523 +        checkCompletedNormally(g, three);
3524 +        assertEquals(a.get(), 1);
3525 +    }
3526 +
3527 +    /**
3528 +     * whenCompleteAsync action executes on exceptional completion, propagating
3529 +     * source result.
3530 +     */
3531 +    public void testWhenCompleteAsync2() {
3532 +        final AtomicInteger a = new AtomicInteger();
3533 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3534 +        CompletableFuture<Integer> g =
3535 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3536 +        f.completeExceptionally(new CFException());
3537 +        checkCompletedWithWrappedCFException(f);
3538 +        checkCompletedWithWrappedCFException(g);
3539 +    }
3540 +
3541 +    /**
3542 +     * If a whenCompleteAsync action throws an exception when
3543 +     * triggered by a normal completion, it completes exceptionally
3544 +     */
3545 +    public void testWhenCompleteAsync3() {
3546 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3547 +        CompletableFuture<Integer> g =
3548 +            f.whenCompleteAsync((Integer x, Throwable t) ->
3549 +                           { throw new CFException(); } );
3550 +        f.complete(three);
3551 +        checkCompletedNormally(f, three);
3552 +        checkCompletedWithWrappedCFException(g);
3553 +    }
3554 +
3555 +    /**
3556 +     * whenCompleteAsync action executes on normal completion, propagating
3557 +     * source result.
3558 +     */
3559 +    public void testWhenCompleteAsync1e() {
3560 +        final AtomicInteger a = new AtomicInteger();
3561 +        ThreadExecutor exec = new ThreadExecutor();
3562 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3563 +        CompletableFuture<Integer> g =
3564 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3565 +                                exec);
3566 +        f.complete(three);
3567 +        checkCompletedNormally(f, three);
3568 +        checkCompletedNormally(g, three);
3569 +        assertEquals(a.get(), 1);
3570 +    }
3571 +
3572 +    /**
3573 +     * whenCompleteAsync action executes on exceptional completion, propagating
3574 +     * source result.
3575 +     */
3576 +    public void testWhenCompleteAsync2e() {
3577 +        final AtomicInteger a = new AtomicInteger();
3578 +        ThreadExecutor exec = new ThreadExecutor();
3579 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3580 +        CompletableFuture<Integer> g =
3581 +            f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
3582 +                                exec);
3583 +        f.completeExceptionally(new CFException());
3584 +        checkCompletedWithWrappedCFException(f);
3585 +        checkCompletedWithWrappedCFException(g);
3586 +    }
3587 +
3588 +    /**
3589 +     * If a whenCompleteAsync action throws an exception when triggered
3590 +     * by a normal completion, it completes exceptionally
3591 +     */
3592 +    public void testWhenCompleteAsync3e() {
3593 +        ThreadExecutor exec = new ThreadExecutor();
3594 +        CompletableFuture<Integer> f = new CompletableFuture<>();
3595 +        CompletableFuture<Integer> g =
3596 +            f.whenCompleteAsync((Integer x, Throwable t) ->
3597 +                                { throw new CFException(); },
3598 +                                exec);
3599 +        f.complete(three);
3600 +        checkCompletedNormally(f, three);
3601 +        checkCompletedWithWrappedCFException(g);
3602 +    }
3603 +
3604 +    /**
3605 +     * handleAsync action completes normally with function value on
3606 +     * either normal or exceptional completion of source
3607 +     */
3608 +    public void testHandleAsync() {
3609 +        CompletableFuture<Integer> f, g;
3610 +        IntegerHandler r;
3611 +
3612 +        f = new CompletableFuture<>();
3613 +        g = f.handleAsync(r = new IntegerHandler());
3614 +        assertFalse(r.ran);
3615 +        f.completeExceptionally(new CFException());
3616 +        checkCompletedWithWrappedCFException(f);
3617 +        checkCompletedNormally(g, three);
3618 +        assertTrue(r.ran);
3619 +
3620 +        f = new CompletableFuture<>();
3621 +        g = f.handleAsync(r = new IntegerHandler());
3622 +        assertFalse(r.ran);
3623 +        f.completeExceptionally(new CFException());
3624 +        checkCompletedWithWrappedCFException(f);
3625 +        checkCompletedNormally(g, three);
3626 +        assertTrue(r.ran);
3627 +
3628 +        f = new CompletableFuture<>();
3629 +        g = f.handleAsync(r = new IntegerHandler());
3630 +        assertFalse(r.ran);
3631 +        f.complete(one);
3632 +        checkCompletedNormally(f, one);
3633 +        checkCompletedNormally(g, two);
3634 +        assertTrue(r.ran);
3635 +
3636 +        f = new CompletableFuture<>();
3637 +        g = f.handleAsync(r = new IntegerHandler());
3638 +        assertFalse(r.ran);
3639 +        f.complete(one);
3640 +        checkCompletedNormally(f, one);
3641 +        checkCompletedNormally(g, two);
3642 +        assertTrue(r.ran);
3643 +    }
3644 +
3645 +    /**
3646 +     * handleAsync action with Executor completes normally with
3647 +     * function value on either normal or exceptional completion of
3648 +     * source
3649 +     */
3650 +    public void testHandleAsync2() {
3651 +        CompletableFuture<Integer> f, g;
3652 +        ThreadExecutor exec = new ThreadExecutor();
3653 +        IntegerHandler r;
3654 +
3655 +        f = new CompletableFuture<>();
3656 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3657 +        assertFalse(r.ran);
3658 +        f.completeExceptionally(new CFException());
3659 +        checkCompletedWithWrappedCFException(f);
3660 +        checkCompletedNormally(g, three);
3661 +        assertTrue(r.ran);
3662 +
3663 +        f = new CompletableFuture<>();
3664 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3665 +        assertFalse(r.ran);
3666 +        f.completeExceptionally(new CFException());
3667 +        checkCompletedWithWrappedCFException(f);
3668 +        checkCompletedNormally(g, three);
3669 +        assertTrue(r.ran);
3670 +
3671 +        f = new CompletableFuture<>();
3672 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3673 +        assertFalse(r.ran);
3674 +        f.complete(one);
3675 +        checkCompletedNormally(f, one);
3676 +        checkCompletedNormally(g, two);
3677 +        assertTrue(r.ran);
3678 +
3679 +        f = new CompletableFuture<>();
3680 +        g = f.handleAsync(r = new IntegerHandler(), exec);
3681 +        assertFalse(r.ran);
3682 +        f.complete(one);
3683 +        checkCompletedNormally(f, one);
3684 +        checkCompletedNormally(g, two);
3685 +        assertTrue(r.ran);
3686 +    }
3687 +
3688   }

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